2016 U.S. presidential election  

Republican Party  
Democratic Party  
Third parties  
Related races  
 
This article contains opinion polling by U.S. state for the 2016 Republican Party presidential primaries. The shading for each poll indicates the candidate(s) which are within one margin of error of the poll's leader.
For the significance of the earliest state votes, the Iowa caucuses and the New Hampshire primary, see United States presidential primary – Iowa and New Hampshire. For when any given state votes, see Republican Party presidential primaries, 2016 – Schedule of primaries and caucuses.
Winner: Donald Trump
Primary date: March 1, 2016
Poll source  Date  1st  2nd  3rd  Other 

Primary results^{[1]}  March 1, 2016  Donald Trump 43.42% 
Ted Cruz 21.09% 
Marco Rubio 18.66% 
Ben Carson 10.24%, John Kasich 4.43%, Jeb Bush 0.46%, Mike Huckabee 0.30%, Rand Paul 0.22%, Chris Christie 0.10%, Rick Santorum 0.07%, Carly Fiorina 0.06%, Lindsey Graham 0.03% 
SurveyMonkey^{[2]}
Margin of error: ± ?% Sample size: 741 
February 22–29, 2016  Donald Trump 47% 
Ted Cruz 18% 
Marco Rubio 14% 
Ben Carson 9%, John Kasich 3%, Undecided 9% 
Monmouth University^{[3]}
Margin of error: ± 4.6%

February 25–28, 2016  Donald Trump 42% 
Marco Rubio 19% 
Ted Cruz 16% 
Ben Carson 11%, John Kasich 5%, Undecided 7% 
Opinion Savvy^{[4]}
Margin of error: ± 4.6% Sample size: 460 
February 25–26, 2016  Donald Trump 35.8% 
Marco Rubio 23.0% 
Ted Cruz 16.2% 
Ben Carson 10.5%, John Kasich 7.5%, Undecided 7.0% 
AL.com^{[5]}
Margin of error: ± 4.5% Sample size: 500 
December 10–13, 2015  Donald Trump 35% 
Ted Cruz 15% 
Marco Rubio 12% 
Ben Carson 12%, Jeb Bush 4%, Mike Huckabee 4%, Chris Christie 3%, John Kasich 2%, Carly Fiorina 1%, Rand Paul <1%, Rick Santorum <1%, Lindsey Graham <1% 
Gravis Marketing^{[6]}
Margin of error: ± 2%

September 3, 2015  Donald Trump 38% 
Ben Carson 16.7% 
Jeb Bush 4.9% 
Ted Cruz 4.1%, Mike Huckabee 2.7%, Marco Rubio 2.3%, Carly Fiorina 2.3%, Rand Paul 1.5%, John Kasich 1.3%, Scott Walker 1.1%, Chris Christie 0.9%, Rick Santorum 0.4%, Rick Perry 0.3%, Bobby Jindal 0.3%, Lindsey Graham 0.1%, unsure 23.2% 
News5/Strategy Research^{[7]}
Margin of error: ± 2%

August 11, 2015  Donald Trump 30% 
Jeb Bush 15% 
Ben Carson 11% 
Marco Rubio 11%, Mike Huckabee 8%, Carly Fiorina 8%, Ted Cruz 7.5%, Scott Walker 3%, Other 5% 
Opinion Savvy/Insider Advantage^{[8]}
Margin of error: ± 4.4%

August 2–3, 2015  Donald Trump 37.6% 
Ben Carson 14.6% 
Jeb Bush 11.8% 
Mike Huckabee 7.9%, Ted Cruz 4.5%, Scott Walker 3.8%, Chris Christie 3.2%, Marco Rubio 2.6%, Rand Paul 2.2%, Bobby Jindal 2.0%, John Kasich 1.4%, Rick Santorum 1.2%, Rick Perry 1.0%, Lindsey Graham 0.7%, Carly Fiorina 0.5%, George Pataki 0.0%, Someone else 1.9%, Undecided 3.1% 
Cygnal^{[9]}
Margin of error: ± 3.42%

July 7–8, 2014  Jeb Bush 19.8% 
Ben Carson 12.6% 
Rand Paul 10.5% 
Chris Christie 8.8%, Rick Perry 7.2%, Ted Cruz 5.6%, Rick Santorum 5.3%, Bobby Jindal 3.9%, Scott Walker 3.6%, Undecided 22.6% 
Winner: Ted Cruz
Primary date: March 1, 2016
Poll source  Date  1st  2nd  3rd  Other 

Caucus results^{[10]}  March 1, 2016  Ted Cruz 36.37% 
Donald Trump 33.64% 
Marco Rubio 15.16% 
Ben Carson 10.83%, John Kasich 3.99%, Other 0.01% 
Alaska Dispatch News/Ivan Moore Research^{[11]}
Margin of error: –

January 23, 2016  Donald Trump 27.9% 
Ted Cruz 23.8% 
Ben Carson 8.5% 
Jeb Bush 7.3%, Marco Rubio 6.9%, Chris Christie 3.3%, Rand Paul 3.0%, John Kasich 1.7%, Other 4.1%, Undecided 13.4% 
Public Policy Polling^{[12]}
Margin of error: ± 5.3%

July 31 – August 3, 2014  Ted Cruz 16% 
Rand Paul 15% 
Mike Huckabee 14% 
Chris Christie 12%, Jeb Bush 12%, Sarah Palin 11%, Scott Walker 7%, Paul Ryan 6%, Marco Rubio 5%, Someone else/Not sure 4% 
Public Policy Polling^{[13]}
Margin of error: ± 5.5%

May 8–11, 2014  Ted Cruz 15% 
Jeb Bush 14% 
Chris Christie 14% 
Sarah Palin 12%, Rand Paul 11%, Mike Huckabee 11%, Paul Ryan 4%, Scott Walker 4%, Marco Rubio 3%, Someone else/Not sure 11% 
Chris Christie 16% 
Jeb Bush 15% 
Ted Cruz 15% 
Rand Paul 14%, Mike Huckabee 10%, Paul Ryan 5%, Scott Walker 5%, Marco Rubio 4%, Someone else/Not sure 16%  
Magellan Strategies^{[14]}
Margin of error: ± 7%

April 14, 2014  Ted Cruz 16% 
Rand Paul 15% 
Jeb Bush 13% 
Mike Huckabee 12%, Chris Christie 11%, Marco Rubio 7%, Scott Walker 6%, John Kasich 1%, Undecided 19% 
Public Policy Polling^{[15]}
Margin of error: ± 4.7%

January 30 – February 1, 2014  Rand Paul 15% 
Ted Cruz 13% 
Sarah Palin 13% 
Jeb Bush 12%, Mike Huckabee 11%, Chris Christie 10%, Marco Rubio 6%, Paul Ryan 4%, Scott Walker 4%, Someone Else/Undecided 12% 
Ted Cruz 16% 
Jeb Bush 14% 
Rand Paul 14% 
Mike Huckabee 13%, Chris Christie 9%, Marco Rubio 8%, Paul Ryan 7%, Scott Walker 5%, Someone Else/Undecided 15%  
Public Policy Polling^{[16]}
Margin of error: ± 4.4%

July 25–28, 2013  Rand Paul 18% 
Sarah Palin 14% 
Chris Christie 13% 
Jeb Bush 11%, Marco Rubio 9%, Paul Ryan 9%, Ted Cruz 8%, Rick Santorum 5%, George Zimmerman 2%, Someone Else/Undecided 12% 
Rand Paul 20% 
Jeb Bush 15% 
Chris Christie 14% 
Paul Ryan 14%, Marco Rubio 10%, Ted Cruz 9%, Rick Santorum 6%, Someone Else/Undecided 12%  
Public Policy Polling^{[17]}
Margin of error: ± 4.2%

Feb. 4–5, 2013  Marco Rubio 18% 
Mike Huckabee 14% 
Rand Paul 12% 
Chris Christie 11%, Paul Ryan 10%, Jeb Bush 9%, Sarah Palin 9%, Bobby Jindal 6%, Rick Perry 1%, Someone Else/Undecided 10% 
Winner: Donald Trump
Primary date: March 22, 2016
Poll source  Date  1st  2nd  3rd  Other 

Primary results^{[18]}  March 22, 2016  Donald Trump 45.95% 
Ted Cruz 27.61% 
John Kasich 11.59% 
Ben Carson 2.39%, Jeb Bush 0.70%, Rand Paul 0.36%, Mike Huckabee 0.21%, Carly Fiorina 0.20%, Chris Christie 0.16%, Rick Santorum 0.08%, Lindsey Graham 0.08%, George Pataki 0.05% 
Opinion Savvy/Fox 10^{[19]}
Margin of error: ± 4%

March 20, 2016  Donald Trump 45.8% 
Ted Cruz 33.3% 
John Kasich 17.1% 
Unsure/Undecided 3.8% 
Merrill/Westgroup Research^{[20]}
Margin of error: ± 5.4%

March 7–11, 2016  Donald Trump 31% 
Ted Cruz 19% 
John Kasich 10% 
Marco Rubio 10%, Unsure/Undecided 30% 
MBQF Consulting^{[21]}
Margin of error: ± 3.57%

March 8, 2016  Donald Trump 37.3% 
Ted Cruz 23.3% 
John Kasich 14.6% 
Marco Rubio 11.6%, Unsure/Undecided 10.4%, Other 2.8% 
MBQF Consulting^{[22]}
Margin of error: ± 3.61%

February 22, 2016  Donald Trump 34.8% 
Marco Rubio 22.7% 
Ted Cruz 14.1% 
Ben Carson 7.1%, Unsure/Undecided 21.3% 
MBQF Consulting^{[23]}
Margin of error: ± 3.53%

January 19, 2016  Donald Trump 38.6% 
Ted Cruz 15.6% 
Marco Rubio 11.4% 
Ben Carson 7.1%, Jeb Bush 7.0%, Chris Christie 3.1%, Carly Fiorina 2.9%, John Kasich 2.9%, Mike Huckabee 1.4%, Rand Paul 0.4%, Unsure/undecided 10% 
Behavior Research Center^{[24]}
Margin of error: ± 6.7%

October 24 – November 4, 2015  Ben Carson 23% 
Donald Trump 21% 
Marco Rubio 15% 
Jeb Bush 8%, Ted Cruz 5%, All others (Christie, Fiorina, Huckabee, Paul, Kasich) 6%, Not sure yet 22% 
Silver Bullet LLC^{[25]}
Margin of error: ± 3.77%

August 3, 2015  Donald Trump 33% 
Jeb Bush 17% 
Scott Walker 13% 
Ben Carson 10%, Ted Cruz 5%, John Kasich 5%, Marco Rubio 4%, Mike Huckabee 2%, Chris Christie 1%, Carly Fiorina 1%, Rand Paul 1%, Rick Perry 0%, Lindsey Graham 0%, Bobby Jindal 0%, George Pataki 0%, Jim Gilmore 0%, Undecided/Refused 7% 
MBQF Consulting^{[26]}
Margin of error: ± 3.56

July 29, 2015  Donald Trump 26.5% 
Scott Walker 12.6%  Jeb Bush 12.1%  Ben Carson 8.7%, Ted Cruz 6%, Mike Huckabee 3.9%, Marco Rubio 3.9%, Rick Perry 2%, Rand Paul 1.7%, Chris Christie 1.7%, Undecided 21% 
Public Policy Polling^{[27]}
Margin of error: ± 5.7%

May 1–3, 2015  Scott Walker 16% 
Jeb Bush 14% 
Marco Rubio 14% 
Ben Carson 11%, Rand Paul 11%, Ted Cruz 9%, Chris Christie 5%, Mike Huckabee 5%, Rick Perry 2%, Undecided 12% 
Public Policy Polling^{[28]}
Margin of error: ± 4.9%

February 28 – March 2, 2014  Ted Cruz 16% 
Rand Paul 14% 
Chris Christie 12% 
Jeb Bush 11%, Mike Huckabee 11%, Paul Ryan 8%, Scott Walker 8%, Marco Rubio 4%, Bobby Jindal 2%, Other/Undecided 13% 
Winner: Donald Trump
Primary date: March 1, 2016
Poll source  Date  1st  2nd  3rd  Other 

Primary results^{[29]}  March 1, 2016  Donald Trump 32.79% 
Ted Cruz 30.50% 
Marco Rubio 24.80% 
Ben Carson 5.72%, John Kasich 3.72%, Mike Huckabee 1.17%, Jeb Bush 0.58%, Rand Paul 0.28%, Chris Christie 0.15%, Carly Fiorina 0.10%, Rick Santorum 0.07%, Lindsey Graham 0.06%, Bobby Jindal 0.04% 
SurveyMonkey^{[2]}
Margin of error: ± ?% Sample size: 542 
February 22–29, 2016  Donald Trump 34% 
Ted Cruz 27% 
Marco Rubio 20% 
Ben Carson 8%, John Kasich 4%, Undecided 6% 
Talk Business/Hendrix^{[30]}
Margin of error: ± ?% Sample size: 457 
February 4, 2016  Ted Cruz 27% 
Marco Rubio 23% 
Donald Trump 23% 
Ben Carson 11%, Carly Fiorina 4%, John Kasich 4%, Jeb Bush 1%, Chris Christie 1%, Don't Know 6% 
Opinion Savvy/Insider Advantage^{[31]}
Margin of error: ± 4.7%

August 2, 2015  Donald Trump 25.5% 
Mike Huckabee 21.4% 
Jeb Bush 9.2% 
Ted Cruz 8.7%, Ben Carson 8.2%, Scott Walker 4.2%, Rand Paul 3.8%, John Kasich 3.1%, Marco Rubio 2.9%, Chris Christie 2.4%, Rick Perry 1.5%, Carly Fiorina 1.3%, Bobby Jindal 1.3%, Lindsey Graham 0.7%, Rick Santorum 0.3%, George Pataki 0%, Someone else 2.2%, Undecided 3.2% 
Suffolk University^{[32]}
Margin of error: ± 7.5%

September 20–23, 2014  Mike Huckabee 39.27% 
Rick Perry 8.38% 
Ted Cruz 7.33% 
Rand Paul 6.28%, Jeb Bush 4.71%, Chris Christie 4.71%, Marco Rubio 4.71%, Paul Ryan 3.14%, Bobby Jindal 2.62%, Rick Santorum 2.09%, Jon Huntsman Jr. 1.57%, Scott Walker 1.57%, John Kasich 1.05%, Other 2.09%, Undecided 10.47% 
Mitt Romney 32.75% 
Mike Huckabee 29.24% 
Ted Cruz 6.43% 
Rick Perry 6.43%, Chris Christie 2.92%, Rand Paul 2.92%, Paul Ryan 2.34%, Jon Huntsman Jr. 1.75%, Marco Rubio 1.75%, Jeb Bush 1.17%, Rick Santorum 0.58%, Scott Walker 0.58%, Bobby Jindal 0%, John Kasich 0% Undecided 11.11%  
Public Policy Polling^{[33]}
Margin of error: ± 4.5%

August 1–3, 2014  Mike Huckabee 33% 
Ted Cruz 12% 
Jeb Bush 10% 
Chris Christie 8%, Rand Paul 7%, Scott Walker 6%, Bobby Jindal 5%, Marco Rubio 4%, Paul Ryan 3%, Someone else/Not sure 11% 
Public Policy Polling^{[34]}
Margin of error: ± 5.4%

April 25–27, 2014  Mike Huckabee 38% 
Ted Cruz 14% 
Rand Paul 13% 
Jeb Bush 10%, Chris Christie 4%, Bobby Jindal 3%, Marco Rubio 3%, Paul Ryan 3%, Cliven Bundy 2%, Someone else/Not sure 10% 
Magellan Strategies^{[35]}
Margin of error: ± 3.35%

April 14–15, 2014  Mike Huckabee 57% 
Rand Paul 9% 
Jeb Bush 8% 
Chris Christie 6%, Ted Cruz 6%, Marco Rubio 5%, John Kasich 2%, Scott Walker 1%, Undecided 7% 
Winner: Donald Trump
Primary date: June 7, 2016
Poll source  Date  1st  2nd  3rd  Other 

Primary results^{[36]}  June 7, 2016  Donald Trump 75.01% 
John Kasich 11.41% 
Ted Cruz 9.30% 
Ben Carson 3.55%, Jim Gilmore 0.72% 
Hoover/Golden State Poll ^{[37]}
Margin of error: ± %

May 4–16, 2016  Donald Trump 66%  Ted Cruz 11% 
John Kasich 7% 

SurveyUSA/KABC/SCNG ^{[38]}
Margin of error: ± 4.3%

April 27–30, 2016  Donald Trump 54%  Ted Cruz 20% 
John Kasich 16% 

Fox News^{[39]}
Margin of error: ± 4.0%

April 18–21, 2016  Donald Trump 49%  Ted Cruz 22% 
John Kasich 20% 
Undecided 7%, None 1% 
CBS News/YouGov^{[40]}
Margin of error: ± 4.8%

April 13–15, 2016  Donald Trump 49%  Ted Cruz 31% 
John Kasich 16% 
Undecided 4% 
Sextant Strategies & Research/Capitol Weekly^{[41]}
Margin of error: ± %

April 11–14, 2016  Donald Trump 41%  Ted Cruz 23% 
John Kasich 21% 
Undecided 15% 
Field^{[42]}
Margin of error: ± 4.0%

March 24–April 4, 2016  Donald Trump 39%  Ted Cruz 32% 
John Kasich 18% 
Other/Undecided 11% 
SurveyUSA^{[43]}
Margin of error: ± 5.3%

March 30–April 3, 2016  Donald Trump 40%  Ted Cruz 32% 
John Kasich 17% 
Undecided 12% 
USC/Los Angeles Times^{[44]}
Margin of error: ± 5.5%

March 16–23, 2016  Donald Trump 36%  Ted Cruz 35% 
John Kasich 14% 

Public Policy Institute of California^{[45]}
Margin of error: ± 7.3%

March 6–15, 2016  Donald Trump 38%  Ted Cruz 27% 
John Kasich 14% 
Other 11%, Don't Know 9% 
Nson^{[46]}
Margin of error: ± 4.9%

March 9–10, 2016  Donald Trump 38%  Ted Cruz 22% 
John Kasich 20% 
Marco Rubio 10%, Other/Undecided 10% 
Smith Johnson Research^{[47]}
Margin of error: ± 4%

March 7–9, 2016  Donald Trump 24.9%  Ted Cruz 19.6% 
Marco Rubio 17.6% 
John Kasich 15.4%, Undecided 22.5% 
Field^{[48]}
Margin of error: ± 5.6%

December 16, 2015– January 3, 2016 
Ted Cruz 25% 
Donald Trump 23% 
Marco Rubio 13%  Ben Carson 9%, Rand Paul 6%, Jeb Bush 4%, Carly Fiorina 3%, Chris Christie 3%, John Kasich 1%, Other/Undecided 13% 
USC/LA Times/SurveyMonkey^{[49]}
Margin of error: ± 3.0%

October 29 – November 3, 2015  Donald Trump 20% 
Ben Carson 19% 
Marco Rubio 14%  Ted Cruz 11%, Carly Fiorina 6%, Jeb Bush 4%, Rand Paul 3%, Chris Christie 2%, Mike Huckabee 1%, Lindsey Graham 1%, John Kasich 1%, Rick Santorum 1%, George Pataki 0%, Bobby Jindal 0%, Undecided 14% 
Field Poll^{[50]}
Margin of error: ± 7.0%

September 17 – October 4, 2015  Donald Trump 17% 
Ben Carson 15% 
Carly Fiorina 13%  Marco Rubio 10%, Jeb Bush 8%, Ted Cruz 6%, Rand Paul 5%, Mike Huckabee 3%, Chris Christie 2%, John Kasich 2%, Rick Santorum 1%, George Pataki 1%, Lindsey Graham 1%, Bobby Jindal 0%, Others 3%, undecided 13% 
LA Times/USC^{[51]}
Margin of error: ± 5.3%

Aug 29 – Sep 8, 2015  Donald Trump 24% 
Ben Carson 18% 
Ted Cruz 6%  Jeb Bush 6%, Marco Rubio 5%, Carly Fiorina 5%, Mike Huckabee 2%, Scott Walker 2%, John Kasich 2%, Rand Paul 2%, Chris Christie 1%, Rick Santorum 1%, Rick Perry 1%, Others 3%, undecided 20% 
Field Poll^{[52]}
Margin of error: ± 7.0%

April 23 – May 16, 2015  Jeb Bush 11% 
Marco Rubio 11% 
Scott Walker 10% 
Rand Paul 8%, Mike Huckabee 6%, Chris Christie 6%, Ben Carson 5%, Ted Cruz 4%, Carly Fiorina 3%, Bobby Jindal 1%, John Kasich 1%, Lindsey Graham 1%, Rick Perry 0%, Other 2%, Undecided 31% 
Emerson College^{[53]}
Margin of error: ± ?

April 2–8, 2015  Jeb Bush 17% 
Scott Walker 17% 
Ben Carson 15% 
Ted Cruz 11%, Rand Paul 8%, Mike Huckabee 6%, Chris Christie 5%, Undecided 20% 
Field Poll^{[54]}
Margin of error: ± 5.4%

January 26 – February 16, 2015  Scott Walker 18% 
Jeb Bush 16% 
Rand Paul 10% 
Ben Carson 8%, Marco Rubio 7%, Ted Cruz 5%, Mike Huckabee 5%, Rick Perry 4%, Chris Christie 3%, Lindsey Graham 1%, Bobby Jindal 1%, Other 3%, Undecided 19% 
Winner: Ted Cruz
Primary date: June 7, 2016
Poll source  Date  1st  2nd  3rd  Other 

Quinnipiac University^{[55]}
Margin of error: ± 4.5%

November 11–15, 2015  Ben Carson 25% 
Marco Rubio 19% 
Donald Trump 17% 
Ted Cruz 14%, Carly Fiorina 5%, Rand Paul 3%, Jeb Bush 2%, Chris Christie 1%, John Kasich 1%, Mike Huckabee 1%, Bobby Jindal 1%, Lindsey Graham 0%, Rick Santorum 0%, George Pataki 0%, Jim Gilmore 0%, DK/NA 11% 
Suffolk University^{[56]}
Margin of error: ± ?%

September 2014  Rand Paul 12.25% 
Paul Ryan 10.29% 
Chris Christie/Mike Huckabee 8.33% 
Scott Walker 7.84%, Marco Rubio 7.35%, Jeb Bush 6.37%, Bobby Jindal 5.88%, Ted Cruz 5.39%, Rick Perry 5.39%, Rick Santorum 2.45%, John Huntsman 1.47%, John Kasich 0.49%, Refused 0.49%, Other 1.96% 
Magellan Strategies^{[57]}
Margin of error: ± 6%

April 14–15, 2014  Rand Paul 17% 
Mike Huckabee 16% 
Ted Cruz 14% 
Chris Christie 12%, Marco Rubio 10%, Jeb Bush 9%, Scott Walker 8%, John Kasich 2%, Undecided 12% 
Public Policy Polling^{[58]}
Margin of error: ± 6.1%

March 13–16, 2014  Ted Cruz 17% 
Mike Huckabee 15% 
Chris Christie 14% 
Rand Paul 10%, Paul Ryan 10%, Jeb Bush 8%, Marco Rubio 8%, Scott Walker 5%, Bobby Jindal 2%, Other/Undecided 11% 
Public Policy Polling^{[59]}
Margin of error: ± 5.2%

December 3–4, 2013  Ted Cruz 18% 
Chris Christie 17% 
Rand Paul 16% 
Marco Rubio 10%, Paul Ryan 9%, Jeb Bush 8%, Scott Walker 6%, Bobby Jindal 3%, Rick Santorum 2%, Other/Undecided 11% 
Winner: Donald Trump
Primary date: April 26, 2016
Poll source  Date  1st  2nd  3rd  Other 

Primary results^{[60]}  April 26, 2016  Donald Trump 57.87% 
John Kasich 28.36% 
Ted Cruz 11.71% 
Ben Carson 0.81% 
Gravis Marketing^{[61]}
Margin of error: ± 3.0%

April 23–24, 2016  Donald Trump 54%  John Kasich 27% 
Ted Cruz 9% 
Undecided 10% 
Public Policy Polling^{[62]}
Margin of error: ± 4.3%

April 22–24, 2016  Donald Trump 59%  John Kasich 25% 
Ted Cruz 13% 
Undecided 3% 
Quinnipiac University^{[63]}
Margin of error: ± 3.4%

April 12–18, 2016  Donald Trump 48% 
John Kasich 28% 
Ted Cruz 19% 
Undecided 5% 
Emerson College^{[64]}
Margin of error: ± 5.2%

April 10 – 11, 2016  Donald Trump 50% 
John Kasich 26% 
Ted Cruz 17% 
Undecided 6%, Other 2% 
Emerson College^{[65]}
Margin of error: ± 4.6%

November 13–16, 2015  Donald Trump 24.7% 
Marco Rubio 14.3% 
John Kasich 10.4% 
Jeb Bush 10.1%, Ben Carson 9.1%, Rand Paul 6.2%, Ted Cruz 6.1%, Carly Fiorina 3.6%, Chris Christie 2.4%, Mike Huckabee 0.4%, George Pataki 0.2%, Lindsey Graham 0.2%, Other 1.6%, Undecided 10.9% 
Quinnipiac University^{[66]}
Margin of error: ± 4.6%

October 7–11, 2015  Donald Trump 34% 
Ben Carson 14% 
Carly Fiorina 11% 
Marco Rubio 7%, Jeb Bush 6%, Ted Cruz 6%, Chris Christie 4%, John Kasich 4%, George Pataki 1%, Rand Paul 1%, Jim Gilmore 0%, Lindsey Graham 0%, Mike Huckabee 0%, Bobby Jindal 0%, Rick Santorum 0%, Someone else 1%, Wouldn't vote 1%, DK/NA 9% 
Quinnipiac University^{[67]}
Margin of error: ± 4.6%

March 6–9, 2015  Jeb Bush 18% 
Scott Walker 18% 
Rand Paul 12% 
Chris Christie 11%, Ben Carson 7%, Ted Cruz 5%, Marco Rubio 4%, Mike Huckabee 3%, Bobby Jindal 2%, Rick Perry 2%, Lindsey Graham 0%, John Kasich 0%, Rick Santorum 0%, Other 3%, Wouldn't vote 3%, Undecided 12% 
Winner: Donald Trump
Primary date: April 26, 2016
Poll source  Date  1st  2nd  3rd  Other 

Primary results^{[68]}  April 26, 2016  Donald Trump 60.77% 
John Kasich 20.35% 
Ted Cruz 15.90% 
Marco Rubio 0.89%, Jeb Bush 0.83% 
Gravis Marketing^{[69]}
Margin of error: ± 3.0%

April 17–18, 2016  Donald Trump 55% 
John Kasich 18% 
Ted Cruz 15% 
Unsure 12% 
Winner: Marco Rubio
Primary date: March 12, 2016
Poll source  Date  1st  2nd  3rd  Other 

Convention results^{[70]}  March 12, 2016  Marco Rubio 37.30% 
John Kasich 35.54% 
Donald Trump 13.77% 
Ted Cruz 12.36%, Jeb Bush 0.49, Rand Paul 0.42%, Ben Carson 0.11% 
Winner: Donald Trump
Primary date: March 15, 2016
Poll source  Date  1st  2nd  3rd  Other 

Primary results^{[71]}  March 15, 2016  Donald Trump 45.72% 
Marco Rubio 27.04% 
Ted Cruz 17.14% 
John Kasich 6.77%, Jeb Bush 1.84%, Ben Carson 0.90%, Rand Paul 0.19%, Mike Huckabee 0.11%, Chris Christie 0.11%, Carly Fiorina 0.08%, Rick Santorum 0.05%, Lindsey Graham 0.03%, Jim Gilmore 0.01% 
Opinion Savvy/Fox 13/ Florida TimesUnion/ Fox 35^{[72]} Margin of error: ± 3.5% Sample size: 787 
March 13, 2016  Donald Trump 44.3% 
Marco Rubio 26.2% 
Ted Cruz 18.2% 
John Kasich 9.7%, Undecided 1.6% 
Trafalgar Group^{[73]}
Margin of error: ± 2.58% Sample size: 1500 
March 12–13, 2016  Donald Trump 43.94% 
Marco Rubio 24.46% 
Ted Cruz 19.56% 
John Kasich 8.57%, Undecided 3.47% 
ARG^{[74]}
Margin of error: ± 5% Sample size: 400 
March 11–13, 2016  Donald Trump 49% 
Marco Rubio 24% 
Ted Cruz 16% 
John Kasich 8%, Undecided 3% 
Monmouth University^{[75]}
Margin of error: ± 4.9% Sample size: 405 
March 11–13, 2016  Donald Trump 44% 
Marco Rubio 27% 
Ted Cruz 17% 
John Kasich 9%, Other 1%, Undecided 3% 
Quinnipiac University^{[76]}
Margin of error: ± 4% Sample size: 615 
March 8–13, 2016  Donald Trump 46% 
Marco Rubio 22% 
Ted Cruz 14% 
John Kasich 10%, Other 1%, No Preference 6% 
CBS News/YouGov^{[77]}
Margin of error: ± 4.8% Sample size: 827 
March 9–11, 2016  Donald Trump 44% 
Ted Cruz 24% 
Marco Rubio 21% 
John Kasich 9%, No Preference 2% 
Florida Atlantic University^{[78]}
Margin of error: ± 3% Sample size: 852 
March 8–11, 2016  Donald Trump 44% 
Marco Rubio 21% 
Ted Cruz 21% 
John Kasich 9%, Undecided 5% 
NBC News/WSJ/Marist^{[79]}
Margin of error: ± 4.3% Sample size: 511 
March 4–10, 2016  Donald Trump 43% 
Marco Rubio 22% 
Ted Cruz 21% 
John Kasich 9% 
Opinion Savvy/Fox 13/ Florida TimesUnion/ Fox 35^{[80]} Margin of error: ± 4% Sample size: 590 
March 9, 2016  Donald Trump 42.8% 
Marco Rubio 23.5% 
Ted Cruz 20.9% 
John Kasich 10.4%, Undecided 2.5% 
Trafalgar Group^{[81]}
Margin of error: ± 2.83% Sample size: 1280 
March 8–9, 2016  Donald Trump 41.87% 
Marco Rubio 23.10% 
Ted Cruz 21.43% 
John Kasich 10.94%, Undecided 2.67% 
Suffolk University/Boston Globe^{[82]}
Margin of error: ± 4.4% Sample size: 500 
March 7–9, 2016  Donald Trump 35.6% 
Marco Rubio 26.6% 
Ted Cruz 19.2% 
John Kasich 9.8%, Undecided 7.6%, Other 1.2% 
The Ledger/10 News WTSP^{[83]}
Margin of error: ± 3.8% Sample size: 700 
March 7–9, 2016  Donald Trump 36% 
Marco Rubio 30% 
Ted Cruz 17% 
John Kasich 8% 
Public Policy Polling^{[84]}
Margin of error: ± 3.3% Sample size: 904 
March 7–8, 2016  Donald Trump 42% 
Marco Rubio 32% 
Ted Cruz 14% 
John Kasich 8%, Undecided 5% 
Fox News^{[85]}
Margin of error: ± 3.5% Sample size: 813 
March 5–8, 2016  Donald Trump 43% 
Marco Rubio 20% 
Ted Cruz 16% 
John Kasich 10%, Undecided 6%, Other 5% 
University of North Florida^{[86]}
Margin of error: ± 3.57% Sample size: 752 
March 2–7, 2016  Donald Trump 35.5% 
Marco Rubio 23.8% 
Ted Cruz 15.5% 
John Kasich 8.8%, Undecided 14.3%, Other 2.6% 
Quinnipiac University^{[87]}
Margin of error: ± 3.8% Sample size: 657 
March 2–7, 2016  Donald Trump 45% 
Marco Rubio 22% 
Ted Cruz 18% 
John Kasich 8%, Undecided 6%, Other 1% 
SurveyUSA/Bay News 9/News 13^{[88]}
Margin of error: ± 3.3% Sample size: 937 
March 4–6, 2016  Donald Trump 42% 
Marco Rubio 22% 
Ted Cruz 17% 
John Kasich 10%, Undecided 5%, Other 3% 
Monmouth University^{[89]}
Margin of error: ± 4.9% Sample size: 403 
March 3–6, 2016  Donald Trump 38% 
Marco Rubio 30% 
Ted Cruz 17% 
John Kasich 10%, Ben Carson 1%, Undecided 5% 
CNN/ORC^{[90]}
Margin of error: ± 5.5% Sample size: 313 
March 2–6, 2016  Donald Trump 40% 
Marco Rubio 24% 
Ted Cruz 19% 
John Kasich 5% 
Univision/Washington Post^{[91]}
Margin of error: ± 5% Sample size: 450 
March 2–5, 2016  Donald Trump 38% 
Marco Rubio 31% 
Ted Cruz 19% 
John Kasich 4%, Don't Know 6%, Other 1% 
Our Principles PAC^{[92]}^{[93]}
Margin of error: ± 3.5% Sample size: 800 
February 29 – March 2, 2016  Donald Trump 35.4% 
Marco Rubio 30.3% 
Ted Cruz 15.5% 
John Kasich 8.5%, Ben Carson 4.6%, Undecided 5.6% 
Public Policy Polling^{[94]}
Margin of error: ± 4.6% Sample size: 464 
February 24–25, 2016  Donald Trump 45% 
Marco Rubio 25% 
Ted Cruz 10% 
John Kasich 8%, Ben Carson 5%, Undecided 7% 
Associated Industries of Florida^{[95]}
Margin of error: ± 4% Sample size: 600 
February 23–24, 2016  Donald Trump 34% 
Marco Rubio 27% 
Ted Cruz 17% 
John Kasich 5%, Ben Carson 5%, Undecided 12% 
Quinnipiac University^{[96]} Margin of error: ± 3.7% Sample size: 705 
February 21–24, 2016  Donald Trump 44% 
Marco Rubio 28% 
Ted Cruz 12% 
John Kasich 7%, Ben Carson 4%, Someone else 1%, DK/NA 5% 
Florida Southern College Center^{[97]} Margin of error: ± ?% Sample size: 268 
January 30 February 6, 2016 
Donald Trump 27.41% 
Marco Rubio 20.43% 
Ted Cruz 12.35% 
Ben Carson 6.04%, Jeb Bush 3.71%, John Kasich 1.61%, Mike Huckabee 0.79%, Chris Christie 0.34%, others 1.17%, Don't Care 25.47% 
CBS/YouGov^{[98]}
Margin of error: ± 4.6% Sample size: 988 
January 18–21, 2016  Donald Trump 41% 
Ted Cruz 22% 
Marco Rubio 18% 
Ben Carson 5%, Jeb Bush 4%, John Kasich 2%, Chris Christie 2%, Rand Paul 1%, all others 0%, no preference 1% 
Florida Atlantic University^{[99]}
Margin of error: ± 4.9% Sample size: 386 
January 15–18, 2016  Donald Trump 47.6% 
Ted Cruz 16.3% 
Marco Rubio 11.1% 
Jeb Bush 9.5%, Ben Carson 3.3%, Rand Paul 3.1%, Chris Christie 2.6%, Mike Huckabee 2.6%, John Kasich 2.1%, Carly Fiorina 0.5%, Jim Gilmore 0.2%, Others 0.1%, Undecided 1.1% 
Opinion Savvy/Fox 13/Florida TimesUnion^{[100]}
Margin of error: ± 3.3% Sample size: 838 
January 17, 2016  Donald Trump 31% 
Ted Cruz 19% 
Jeb Bush 13% 
Marco Rubio 12%, Ben Carson 7%, Chris Christie 4%, Carly Fiorina 4%, John Kasich 3%, Rand Paul 3%, Mike Huckabee 2%, Rick Santorum 0%, Undecided 2% 
Associated Industries of Florida^{[101]}
Margin of error: ± 3.5%

December 16–17, 2015  Donald Trump 29%  Ted Cruz 18%  Marco Rubio 17%  Jeb Bush 10%, Ben Carson 6%, Other 8%, Undecided 12% 
Opinion Savvy/Fox 13/Florida TimesUnion^{[102]}
Margin of error: ± 4.1%

December 16, 2015  Donald Trump 29.7%  Ted Cruz 20.4%  Marco Rubio 15%  Jeb Bush 12.5%, Ben Carson 7.7%, Chris Christie 6.1%, Carly Fiorina 2.7%, Rand Paul 2.6%, John Kasich 0.9%, George Pataki 0.1%, Rick Santorum 0.1%, Undecided 2.2% 
St. Pete Polls^{[103]}
Margin of error: ± 1.5%

December 14–15, 2015  Donald Trump 36%  Ted Cruz 22%  Marco Rubio 17%  Jeb Bush 9%, Ben Carson 6%, Chris Christie 3%, John Kasich 2%, Carly Fiorina 1%, Rand Paul 1%, Unsure or someone else 4% 
St. Leo University ^{[104]}

November 29 – December 3, 2015  Donald Trump 30.6%  Marco Rubio 15.0%  Jeb Bush 14.3%  Ben Carson 10.9%, Ted Cruz 10.2%, Rand Paul 5.9%, Chris Christie 4.1%, Carly Fiorina 2.7%, John Kasich 2.0%, Mike Huckabee 1.4%, Rick Santorum 0.7%, Others 0.7%, Undecided 1.4% 
Florida Atlantic University^{[105]}
Margin of error: ± 5.2%

November 15–16, 2015  Donald Trump 35.9%  Marco Rubio 18.4%  Ben Carson 14.5%  Ted Cruz 10%, Jeb Bush 8.9%, Rand Paul 4.1%, John Kasich 3%, Carly Fiorina 2.4%, Mike Huckabee 0.4%, Lindsey Graham 0.4%, Chris Christie 0.1%, Others 0.3%, Undecided 1.9% 
Florida TimesUnion^{[106]}
Margin of error: ± 3.4%

November 11, 2015  Donald Trump 22.7%  Ben Carson 22.3%  Marco Rubio 17.9%  Ted Cruz 12.4%, Jeb Bush 10.9%, Carly Fiorina 4.7%, Chris Christie 2.9%, John Kasich 2.8%, Rand Paul 1%, Mike Huckabee 1%, Bobby Jindal 0.4%, Rick Santorum 0.1%, George Pataki 0%, Lindsey Graham 0%, Undecided 1% 
SurveyUSA^{[107]}
Margin of error: ± 3.3%

October 28 – November 1, 2015  Donald Trump 37%  Ben Carson 17%  Marco Rubio 16%  Ted Cruz 10%, Jeb Bush 7%, Carly Fiorina 3%, John Kasich 3% Mike Huckabee 1% other 1%, unsure 3% 
Viewpoint Florida^{[108]}
Margin of error: ± 2.2%

October 29–30, 2015  Donald Trump 26.81%  Marco Rubio 16.28%  Ben Carson 15.07%  Ted Cruz 12.41%, Jeb Bush 12.07%, Carly Fiorina 4.40%, other 4.67%, unsure 8.29% 
Saint Leo University Polling Institute^{[109]}
Margin of error: ± 7.0%

October 17–22, 2015  Donald Trump 25.8%  Marco Rubio 21.5%  Jeb Bush 15.3%  Ben Carson 14.7% 
UNF^{[110]}
Margin of error: ± 3.87%

October 8–13, 2015  Donald Trump 21.7%  Ben Carson 19.3%  Marco Rubio 14.9%  Jeb Bush 9%, Ted Cruz 6.8%, Carly Fiorina 6.5%, John Kasich 3.5%, Mike Huckabee 1.4%, Chris Christie 1.3%, Rand Paul <1%, George Pataki <1%, Rick Santorum <1%, Lindsey Graham <1%, Bobby Jindal <1%, Someone else 1.5%, DK 8%, NA 4.1% 
Quinnipiac University^{[111]}
Margin of error: ± 4.6%

September 25 – October 5, 2015  Donald Trump 28%  Ben Carson 16%  Marco Rubio 14%  Jeb Bush 12%, Carly Fiorina 7%, Ted Cruz 6%, Rand Paul 2%, John Kasich 2%, Chris Christie 2%, Mike Huckabee 1%, Jim Gilmore 0%, George Pataki 0%, Rick Santorum 0%, Lindsey Graham 0%, Bobby Jindal 0%, Would not vote 1%, Someone else 0%, DK/NA 10% 
FL Chamber^{[112]}
Margin of error: ± 4%

September 16–20, 2015  Donald Trump 25%  Marco Rubio 14%  Jeb Bush 13%  Carly Fiorina 11%, Ben Carson 9%, Ted Cruz 6% 
Florida Atlantic Univ.^{[113]}
Margin of error: ± 5.2%

September 17–20, 2015  Donald Trump 31.5%  Marco Rubio 19.2%  Jeb Bush 11.3%  Ben Carson 10.3%, Carly Fiorina 8.3%, Ted Cruz 5.8%, Chris Christie 4.1%, Rand Paul 3.2%, Scott Walker 2%, John Kasich 1.7%, Mike Huckabee 1.4%, Undecided 1.1% 
Public Policy Polling^{[114]}
Margin of error: ± 5.0%

September 11–13, 2015  Donald Trump 28%  Ben Carson 17%  Jeb Bush 13%  Marco Rubio 10%, Ted Cruz 9%, Carly Fiorina 7%, John Kasich 5%, Mike Huckabee 3%, Chris Christie 2%, Scott Walker 2%, Bobby Jindal 1%, Rick Santorum 1%, Rand Paul 0%, Lindsey Graham 0%, Jim Gilmore 0%, Undecided 1% 
Opinion Savvy^{[115]}
Margin of error: ± 4.3%

September 2, 2015  Donald Trump 28.9%  Ben Carson 24.5%  Jeb Bush 18.6%  Marco Rubio 5.6%, Carly Fiorina 5%, John Kasich 2.6%, Ted Cruz 2.5%, Chris Christie 2.4%, Mike Huckabee 2.4%, Scott Walker 1.2%, Bobby Jindal 0.7%, Rand Paul 0.4%, Lindsey Graham 0.3% Rick Santorum 0.1%, Rick Perry 0%, Someone Else 1.4%, undecided 3.5% 
Quinnipiac University^{[116]}
Margin of error: ± 4.5%

August 7–18, 2015  Donald Trump 21%  Jeb Bush 17%  Ben Carson 11%  Marco Rubio 11%, Ted Cruz 7%, Carly Fiorina 7%, Mike Huckabee 4%, Scott Walker 4%, Rand Paul 4%, John Kasich 3%, Bobby Jindal 1%, Chris Christie 1%, Rick Perry 0%, Lindsey Graham 0%, Wouldn't vote 1%, Don't know 8% 
Opinion Savvy/Insider Advantage^{[117]}
Margin of error: ± 4.1%

August 3, 2015  Donald Trump 26.6%  Jeb Bush 26.2%  Ben Carson 8.3%  Ted Cruz 8.2%, Marco Rubio 6.5%, Scott Walker 5.8%, Mike Huckabee 4.2%, John Kasich 3.1%, Bobby Jindal 2.4%, Carly Fiorina 1.8%, Rand Paul 1.8%, Chris Christie 1.2%, Rick Perry 0.7%, George Pataki 0.3%, Lindsey Graham 0%, Someone else 1.3%, Undecided 1.5% 
St. Pete^{[118]}
Margin of error: ± 2.2%

July 18–28, 2015  Donald Trump 26.1% 
Jeb Bush 20%  Scott Walker 12.2%  Marco Rubio 9.7%, Ben Carson 4.5%, Ted Cruz 4.2%, John Kasich 4.1%, Rand Paul 3.3%, Someone else/Unsure 15.9% 
MasonDixon^{[119]}
Margin of error: ± 4.5%

July 20–23, 2015  Jeb Bush 28% 
Marco Rubio 16%  Scott Walker 13%  Donald Trump 11%, Mike Huckabee 5%, Ted Cruz 4%, Rand Paul 3%, John Kasich 3%, Carly Fiorina 2%, Ben Carson 1%, Bobby Jindal 1%, Rick Santorum 0%, Rick Perry 0%, Chris Christie 0%, Lindsey Graham 0%, George Pataki 0%, Undecided 13% 
Gravis Marketing^{[120]}
Margin of error: ± 3.0%

June 16–20, 2015  Jeb Bush 27.5% 
Marco Rubio 23% 
Rand Paul 8.8% 
Scott Walker 8.7%, Carly Fiorina 6.2%, Ted Cruz 5.2%, Mike Huckabee 4.5%, Bobby Jindal 2.4%, Lindsey Graham 0.3%, Rick Santorum 0.1%, Unsure 13.3% 
Quinnipiac University^{[121]}
Margin of error: ± 4.8%

June 4–15, 2015  Jeb Bush 20% 
Marco Rubio 18% 
Scott Walker 9%  Ben Carson 7%, Mike Huckabee 6%, Rand Paul 5%, Rick Perry 4%, Chris Christie 3%, Ted Cruz 3%, Donald Trump 3%, Carly Fiorina 2%, Lindsey Graham 1%, Bobby Jindal 1%, John Kasich 1%, George Pataki 1%, Rick Santorum 1%, Someone else 1%, Wouldn't vote 1%, Don't know 13% 
MasonDixon^{[122]}
Margin of error: ± 5%

April 14–16, 2015  Marco Rubio 31% 
Jeb Bush 30% 
Ted Cruz 8% 
Rand Paul 7%, Scott Walker 2%, Other 5% Undecided 17% 
Quinnipiac University^{[123]}
Margin of error: ± 4.7%

March 17–28, 2015  Jeb Bush 24% 
Scott Walker 15% 
Marco Rubio 12% 
Ben Carson 8%, Ted Cruz 7%, Mike Huckabee 6%, Rand Paul 4%, Rick Perry 2%, Chris Christie 1%, John Kaisch 1%, Lindsey Graham 0%, Bobby Jindal 0%, Rick Santorum 0%, Someone else 3%, Wouldn't vote 1% Undecided 15% 
Marco Rubio 21% 
Scott Walker 17% 
Ben Carson 9% 
Ted Cruz 8%, Rand Paul 7%, Mike Huckabee 6%, Chris Christie 3%, Rick Perry 3%, Lindsey Graham 1%, Bobby Jindal 1%, John Kaisch 1%, Rick Santorum 0%, Someone else 3%, Wouldn't vote 2% Undecided 20%  
Jeb Bush 26% 
Marco Rubio 15% 
Ben Carson 10% 
Ted Cruz 10%, Mike Huckabee 6%, Rand Paul 5%, Rick Perry 3%, Chris Christie 2%, Bobby Jindal 2%, John Kaisch 1%, Lindsey Graham 0%, Rick Santorum 0%, Someone else 3%, Wouldn't vote 1% Undecided 16%  
Public Policy Polling^{[124]}
Margin of error: ± 4.8%

March 19–22, 2015  Jeb Bush 25% 
Scott Walker 17% 
Marco Rubio 15% 
Ben Carson 12%, Mike Huckabee 7%, Ted Cruz 6%, Chris Christie 4%, Rand Paul 4%, Rick Perry 3%, Undecided 6% 
Gravis Marketing^{[125]}
Margin of error: ± 4%

February 24–25, 2015  Jeb Bush 23% 
Scott Walker 22% 
Marco Rubio 11% 
Mike Huckabee 10%, Ben Carson 8%, Chris Christie 6%, Rand Paul 5%, Ted Cruz 2%, Rick Perry 1%, Undecided 12% 
Jeb Bush 40% 
Marco Rubio 36% 
Undecided 24%  
Quinnipiac University^{[126]}
Margin of error: ± 5.3%

January 22 – February 1, 2015  Jeb Bush 30% 
Marco Rubio 13% 
Mike Huckabee 10% 
Mitt Romney 9%, Scott Walker 8%, Ben Carson 7%, Ted Cruz 3%, Bobby Jindal 3%, Rand Paul 3%, Rick Santorum 3%, Chris Christie 2%, Rick Perry 1%, John Kasich 0%, Other 1%, Wouldn't vote 0%, Undecided 8% 
Jeb Bush 32% 
Marco Rubio 15% 
Mike Huckabee 11% 
Scott Walker 9%, Ben Carson 8%, Ted Cruz 4%, Chris Christie 3%, Bobby Jindal 3%, Rand Paul 3%, Rick Santorum 3%, Rick Perry 1%, John Kasich 0%, Other 1%, Wouldn't vote 0%, Undecided 8%  
Gravis Marketing^{[127]}
Margin of error: ± 3%

November 19–20, 2014  Jeb Bush 33% 
Marco Rubio 14% 
Ted Cruz 11% 
Rand Paul 11%, Chris Christie 6%, Nikki Haley 5%, Paul Ryan 5%, Rick Santorum 3%, Undecided 13% 
Jeb Bush 44% 
Marco Rubio 34% 
Undecided 22%  
Quinnipiac University^{[128]}
Margin of error: ± 4.6%

July 17–21, 2014  Jeb Bush 21% 
Marco Rubio 18% 
Ted Cruz 10% 
Rand Paul 8%, Mike Huckabee 7%, Chris Christie 6%, Rick Perry 5%, Paul Ryan 2%, Scott Walker 2%, Bobby Jindal 1%, John Kasich 1%, Rick Santorum 1%, Other 2%, Wouldn't vote 4%, Undecided 13% 
Public Policy Polling^{[129]}
Margin of error: ± 5.5%

June 6–9, 2014  Jeb Bush 30% 
Marco Rubio 14% 
Rand Paul 11% 
Ted Cruz 9%, Chris Christie 8%, Mike Huckabee 7%, Scott Walker 7%, Paul Ryan 2%, Bobby Jindal 1%, Someone else/Not sure 10% 
Marco Rubio 45% 
Jeb Bush 41% 
Not sure 14%  
Quinnipiac University^{[130]}
Margin of error: ± 4.4%

April 23–28, 2014  Jeb Bush 27% 
Rand Paul 14% 
Marco Rubio 11% 
Chris Christie 7%, Ted Cruz 6%, Mike Huckabee 6%, Paul Ryan 6%, Scott Walker 4%, Bobby Jindal 1%, Other 1%, Wouldn't vote 2%, Undecided 16% 
Magellan Strategies^{[131]}
Margin of error: ± 3.33%

April 14–15, 2014  Jeb Bush 38% 
Mike Huckabee 11% 
Ted Cruz 10% 
Rand Paul 10%, Marco Rubio 8%, Chris Christie 7%, Scott Walker 7%, John Kasich 3%, Undecided 6% 
Quinnipiac University^{[132]}
Margin of error: ± 4.1%

January 22–27, 2014  Jeb Bush 25% 
Marco Rubio 16% 
Rand Paul 11% 
Chris Christie 9%, Ted Cruz 9%, Paul Ryan 5%, Scott Walker 5%, Bobby Jindal 3%, Other 2%, Wouldn't vote 2%, Undecided 14% 
Quinnipiac University^{[133]}
Margin of error: ± 3.8%

November 12–17, 2013  Jeb Bush 22% 
Marco Rubio 18% 
Chris Christie 14% 
Ted Cruz 12%, Rand Paul 9%, Paul Ryan 6%, Bobby Jindal 3%, Scott Walker 2%, Other 1%, Wouldn't vote 1%, Undecided 12% 
Public Policy Polling^{[134]}
Margin of error: ± 5.4%

March 15–18, 2013  Jeb Bush 30% 
Marco Rubio 29% 
Rand Paul 11% 
Mike Huckabee 9%, Chris Christie 8%, Paul Ryan 4%, Bobby Jindal 2%, Rick Perry 1%, Susana Martinez 0%, Someone Else/Undecided 6% 
Marco Rubio 49% 
Jeb Bush 36% 
Undecided 15%  
Public Policy Polling^{[135]}
Margin of error: ± 4.7%

January 11–13, 2013  Marco Rubio 31% 
Jeb Bush 26% 
Mike Huckabee 11% 
Chris Christie 7%, Bobby Jindal 5%, Rand Paul 5%, Paul Ryan 5%, Susana Martinez 2%, Rick Perry 2%, Someone Else/Undecided 5% 
Winner: Donald Trump
Primary date: March 1, 2016
Poll source  Date  1st  2nd  3rd  Other 

Primary results^{[136]}  March 1, 2016  Donald Trump 38.81% 
Marco Rubio 24.45% 
Ted Cruz 23.60% 
Ben Carson 6.23%, John Kasich 5.69%, Jeb Bush 0.69%, Rand Paul 0.22%, Mike Huckabee 0.20%, Chris Christie 0.11%, Carly Fiorina 0.09%, Rick Santorum 0.04%, Lindsey Graham 0.03%, George Pataki 0.02%, 
SurveyMonkey^{[2]}
Margin of error: ± ?% Sample size: 1171 
February 22–29, 2016  Donald Trump 39% 
Ted Cruz 21% 
Marco Rubio 20% 
Ben Carson 9%, John Kasich 6%, Undecided 6% 
Landmark/RosettaStone^{[137]}
Margin of error: ± 2.6%

February 28, 2016  Donald Trump 39% 
Marco Rubio 20% 
Ted Cruz 15% 
Ben Carson 9%, John Kasich 8%, Undecided 9% 
Opinion Savvy/Fox 5 Atlanta^{[138]}
Margin of error: ± 3.7% Sample size: 710 
February 27–28, 2016  Donald Trump 32.5% 
Marco Rubio 23.2% 
Ted Cruz 23.2% 
John Kasich 10.7%, Ben Carson 6.1%, Undecided 4.3% 
Trafalgar Group^{[139]}
Margin of error: ± 3.14% Sample size: 1350 
February 26–28, 2016  Donald Trump 38.6% 
Marco Rubio 23.54% 
Ted Cruz 20.74% 
John Kasich 7.03%, Ben Carson 6.14%, Undecided 3.95% 
CBS/YouGov^{[140]}
Margin of error: ± 7% Sample size: 493 
February 22–26, 2016  Donald Trump 40% 
Ted Cruz 29% 
Marco Rubio 22% 
Ben Carson 7%, John Kasich 2% 
ResearchNOW/WABE^{[141]}
Margin of error: ± 4.1% Sample size: 400 
February 22–24, 2016  Donald Trump 41% 
Marco Rubio 18% 
Ted Cruz 15% 
Ben Carson 8%, John Kasich 7%, Undecided 10% 
SurveyUSA/TEGNA^{[142]}
Margin of error: ± 3.8% Sample size: 684 
February 22–23, 2016  Donald Trump 45% 
Marco Rubio 19% 
Ted Cruz 16% 
Ben Carson 8%, John Kasich 6%, Other 1%, Undecided 5% 
Opinion Savvy/Fox 5 Atlanta^{[143]}
Margin of error: ± 3.6% Sample size: 745 
February 22–23, 2016  Donald Trump 33.6% 
Marco Rubio 22.2% 
Ted Cruz 20.4% 
John Kasich 8.9%, Ben Carson 7.7%, Undecided 7.2% 
NBC News/Wall Street Journal/Marist^{[144]} Margin of error: ± 4.2%

February 18–23, 2016  Donald Trump 30% 
Ted Cruz 23% 
Marco Rubio 23% 
Ben Carson 9%, John Kasich 9% 
Landmark/RosettaStone^{[145]}
Margin of error: ± 4.4%

February 21, 2016  Donald Trump 31.7% 
Marco Rubio 22.7% 
Ted Cruz 18.7% 
Ben Carson 8.1%, John Kasich 7.9%, Undecided 10.9% 
Landmark/RosettaStone^{[146]}
Margin of error: ± 4.4%

February 4, 2016  Donald Trump 27.3% 
Ted Cruz 18.3% 
Marco Rubio 18.2% 
Ben Carson 7.7%, John Kasich 4.4%, Chris Christie 3.9%, Jeb Bush 3.0%, Carly Fiorina 1.8%, Undecided 15.4% 
CBS/YouGov^{[147]}
Margin of error: ± 6.2%

January 18–21, 2016  Donald Trump 39% 
Ted Cruz 29% 
Marco Rubio 13% 
Ben Carson 6%, Jeb Bush 2%, Chris Christie 2%, Carly Fiorina 2%, Mike Huckabee 2%, John Kasich 2%, Jim Gilmore 0%, Rand Paul 0%, Rick Santorum 0%, No preference 1% 
Opinion Savvy/Fox 5 Atlanta^{[148]}
Margin of error: ± 3.4% Sample size: 803 
January 17, 2016  Donald Trump 33.4% 
Ted Cruz 23.4% 
Marco Rubio 8.2% 
Ben Carson 7.3%, Jeb Bush 7.1%, John Kasich 3.8%, Chris Christie 3.7%, Carly Fiorina 3.5%, Rand Paul 3.5%, Mike Huckabee 3.2%, Rick Santorum 0.1%, Undecided 2.7% 
Opinion Savvy/Fox 5 Atlanta^{[149]}
Margin of error: ± 4.2%

December 16, 2015  Donald Trump 34.6% 
Ted Cruz 15.8%  Marco Rubio 12%  Ben Carson 6.4%, Jeb Bush 6%, Chris Christie 5.6%, Carly Fiorina 5.1%, John Kasich 2.3%, Rand Paul 2.1%, Lindsey Graham 1.4%, Mike Huckabee 1.4%, George Pataki 0.5%, Undecided 6.8% 
WSB TV/Landmark^{[150]}
Margin of error: ±3.3%

December 10, 2015  Donald Trump 43.3% 
Ted Cruz 16.2%  Marco Rubio 10.6%  Ben Carson 6.7%, Jeb Bush 4.8%, Mike Huckabee 1.9%, Carly Fiorina 1.8%, John Kasich 1.5%, Rand Paul 0.5%, Undecided 12.9% 
FOX 5/Morris News^{[151]}
Margin of error: ±4.7%

November 9–10, 2015  Ben Carson 26% 
Donald Trump 24% 
Ted Cruz 14%  Marco Rubio 9%, Jeb Bush 8%, Carly Fiorina 6% 
WXIATV/SurveyUSA^{[152]}
Margin of error: ±2%

October 26, 2015  Donald Trump 35% 
Ben Carson 28% 
Marco Rubio 12%  Ted Cruz 8%, Jeb Bush 4%, Carly Fiorina 3%, Mike Huckabee 3%, John Kasich 2% 
WSB/Landmark^{[153]}
Margin of error: ±4%

September 23, 2015  Donald Trump 30.8% 
Ben Carson 17.9% 
Carly Fiorina 13.2%  Marco Rubio 9.4%, Ted Cruz 7.9%, Jeb Bush 7.5%, Mike Huckabee 4.4%, John Kasich 1.9%, Rand Paul 1.1%, Undecided 5.9% 
Opinion Savvy^{[154]}
Margin of error: ±3.8%

September 3, 2015  Donald Trump 34.2% 
Ben Carson 24.8% 
Jeb Bush 10.9% 
Ted Cruz 6.3%, Mike Huckabee 5.1%, Carly Fiorina 4.5%, John Kasich 2.5%, Marco Rubio 2.1%, Chris Christie 2%, Scott Walker 1.9%, Rick Perry 0.1%, Rick Santorum 0.1%, Bobby Jindal 0.1%, Lindsey Graham 0.1%, Rand Paul 0%, George Pataki 0%, Someone else 1.8%, Undecided 3.5% 
WSB/Landmark^{[155]}
Margin of error: ± 4.0%

August 5, 2015  Donald Trump 34.3% 
Jeb Bush 12.0% 
Scott Walker 10.4% 
Mike Huckabee 8.1%, Ben Carson 8.1%, Ted Cruz 5.4%, John Kasich 4.5%, Marco Rubio 4.5%, Chris Christie 2.8%, Rand Paul 2.4%, Undecided 7.5% 
5 Atlanta/Morris News Service^{[156]}^{[permanent dead link]}
Margin of error: ± 4.1%

August 3, 2015  Donald Trump 30.4% 
Jeb Bush 17.3% 
Ben Carson 9.6% 
Mike Huckabee 6.5%, Ted Cruz 5.9%, Scott Walker 5%, Rand Paul 3.4%, Chris Christie 3.2%, Marco Rubio 3% John Kasich 2.8%, Carly Fiorina 2.5% Rick Perry 2.1% Bobby Jindal 1.7%, Lindsey Graham 0.4%, George Pataki 0.2%, Rick Santorum 0.1%, Other/No opinion 5.9% 
Landmark Communications/Rosetta Stone^{[157]}
Margin of error: ± 4.3%

May 11–12, 2015  Mike Huckabee 18.3% 
Ben Carson 15.4% 
Scott Walker 12.6% 
Jeb Bush 10.1%, Marco Rubio 9.6%, Ted Cruz 9.3%, Rand Paul 4%, Carly Fiorina 2.6%, Chris Christie 2.2%, Rick Santorum 0.3%, Other/No opinion 15.6% 
Insider Advantage^{[158]}
Margin of error: ± ?

February 4, 2015  Jeb Bush 21.5% 
Scott Walker 17.3% 
Mike Huckabee 16.4% 
Ben Carson 15.5%, Rick Perry 7.2%, Rand Paul 3.9%, Marco Rubio 3.9%, Chris Christie 3%, Donald Trump 1.9%, Other/No opinion 9.5% 
Winner: Donald Trump
Caucus date: March 8, 2016
Poll source  Date  1st  2nd  3rd  Other 

Caucus results^{[159]}  March 8, 2016  Donald Trump 42.4% 
Ted Cruz 32.7% 
Marco Rubio 13.1% 
John Kasich 10.6%, Other 1.1% 
Winner: Ted Cruz
Primary date: March 8, 2016
Poll source  Date  1st  2nd  3rd  Other 

Primary results^{[160]}  March 8, 2016  Ted Cruz 45.42% 
Donald Trump 28.11% 
Marco Rubio 15.91% 
John Kasich 7.43%, Ben Carson 1.75%, Jeb Bush 0.42%, Rand Paul 0.38%, Mike Huckabee 0.16%, Chris Christie 0.16%, Carly Fiorina 0.11%, Rick Santorum 0.10%, Lindsey Graham 0.03% 
Dan Jones & Associates^{[161]}
Margin of error: ± 4%

February 17–26, 2016  Donald Trump 30% 
Ted Cruz 19% 
Marco Rubio 16% 
Ben Carson 11%, John Kasich 5%, Others 9%, Don't Know 11% 
Dan Jones & Associates^{[162]}
Margin of error: ± 3.93%

January 21–31, 2016  Donald Trump 31% 
Ted Cruz 19% 
Ben Carson 13% 
Marco Rubio 11%, Others 20%, Don't Know 6% 
Dan Jones & Associates^{[163]}
Margin of error: ± 3.99%

December 17–29, 2015  Donald Trump 30% 
Ben Carson 19% 
Ted Cruz 16% 
Marco Rubio 10%, Don't Know 10% 
Dan Jones & Associates^{[164]}
Margin of error: ± 4.35%

August 20–31, 2015  Donald Trump 28% 
Ben Carson 15% 
Ted Cruz 7% 
Jeb Bush 7%, Marco Rubio 6%, Rand Paul 5%, Don't Know 17% 
Dan Jones & Associates^{[165]}
Margin of error: ± ?%

Published August 9, 2015  Donald Trump 19% 
Jeb Bush 10% 
all others <10%  Don't know 24% 
Idaho Politics Weekly^{[166]}
Margin of error: ± ?%

June 17, 2015 – July 1, 2015  Jeb Bush 15% 
Donald Trump 12% 
Rand Paul 10% 
Ben Carson 8%, Marco Rubio 7%, Mike Huckabee 5%, Someone else 13%, Don't know 23% 
Winner: Donald Trump
Primary date: March 15, 2016
Poll source  Date  1st  2nd  3rd  Other 

Primary results^{[167]}  March 15, 2016  Donald Trump 38.80% 
Ted Cruz 30.23% 
John Kasich 19.74% 
Marco Rubio 8.74%, Ben Carson 0.79%, Jeb Bush 0.77%, Rand Paul 0.33%, Chris Christie 0.24%, Mike Huckabee 0.19%, Carly Fiorina 0.11%, Rick Santorum 0.08% 
CBS News/YouGov^{[77]}
Margin of error: ± 4.4% Sample size: 770 
March 9–11, 2016  Donald Trump 38% 
Ted Cruz 34% 
John Kasich 16% 
Marco Rubio 11%, No Preference 1% 
NBC News/WSJ/Marist^{[79]}
Margin of error: ± 4.8% Sample size: 421 
March 4–10, 2016  Donald Trump 34% 
Ted Cruz 25% 
John Kasich 21% 
Marco Rubio 16% 
WeAskAmerica^{[168]}
Margin of error: ± 3.09%

March 7–8, 2016  Donald Trump 32.64% 
Ted Cruz 19.9% 
John Kasich 18.41% 
Marco Rubio 11.34%, Other 1.49%, Undecided 16.22% 
Chicago Tribune^{[169]}
Margin of error: ± 4.1%

March 2–6, 2016  Donald Trump 32% 
Ted Cruz 22% 
Marco Rubio 21% 
John Kasich 18%, Undecided 7% 
WeAskAmerica^{[170]}
Margin of error: ± 3%

February 24, 2016  Donald Trump 38.44% 
Marco Rubio 21.21% 
Ted Cruz 15.87% 
John Kasich 9.31%, Other 4.73%, Undecided 10.45% 
Paul Simon Public Policy Institute^{[171]} Margin of error: ± 5.6%

February 15–20, 2016  Donald Trump 28% 
Ted Cruz 15% 
Marco Rubio 14% 
John Kasich 13%, Jeb Bush 8%, Ben Carson 6%, Other 1%, Undecided 15% 
Compass Consulting^{[172]}
Margin of error: ± 2.5%

December 16, 2015  Donald Trump 30% 
Ted Cruz 15% 
Marco Rubio 13% 
Jeb Bush 7%, Ben Carson 6%, Chris Christie 6%, John Kasich 3%, Carly Fiorina 2%, Rand Paul 2%, Other 2%, Undecided 11% 
Victory Research^{[173]}
Margin of error: ± 3.46%

August 16–18, 2015  Donald Trump 23.3% 
Jeb Bush 16.5% 
Scott Walker 11% 
Ben Carson 5.5%, Marco Rubio 5%, Carly Fiorina 4.6%, Other 16.2%, Undecided 17.9% 
Public Policy Polling^{[174]}
Margin of error: ± 5.1%

July 20–21, 2015  Scott Walker 23% 
Donald Trump 18% 
Jeb Bush 11% 
Chris Christie 8%, Ben Carson 7%, Marco Rubio 6%, Rand Paul 5%, Mike Huckabee 5%, Ted Cruz 4%, Carly Fiorina 3%, Rick Santorum 2%, Bobby Jindal 2%, Rick Perry 1%, John Kasich 1%, Lindsey Graham 1%, Undecided 3% 
Public Policy Polling^{[175]}
Margin of error: ± 5.1%

November 22–25, 2013  Chris Christie 18% 
Ted Cruz 13% 
Jeb Bush 12% 
Rand Paul 10%, Paul Ryan 9%, Scott Walker 7%, Marco Rubio 6%, Bobby Jindal 4%, Rick Santorum 4%, Other/Undecided 16% 
Winner: Donald Trump
Primary date: May 3, 2016
Poll source  Date  1st  2nd  3rd  Other 

Primary results^{[176]}  May 3, 2016  Donald Trump 53.25% 
Ted Cruz 36.64% 
John Kasich 7.57% 
Ben Carson 0.80%, Jeb Bush 0.59%, Marco Rubio 0.47%, Rand Paul 0.39%, Chris Christie 0.16%, Carly Fiorina 0.13% 
Gravis Marketing^{[177]}
Margin of error: ± 5.0%

April 28–29, 2016  Donald Trump 44% 
Ted Cruz 27% 
John Kasich 9% 
Undecided 19% 
ARG^{[178]}
Margin of error: ± 4.0%

April 27–28, 2016  Donald Trump 41% 
Ted Cruz 32% 
John Kasich 21% 
Undecided 6% 
NBC News/Wall Street Journal/Marist^{[179]}
Margin of error: ± 3.9%

April 26–28, 2016  Donald Trump 49% 
Ted Cruz 34% 
John Kasich 13% 
Undecided 4% 
IPFW^{[180]}
Margin of error: ± 4.9%

April 13–27, 2016  Ted Cruz 45% 
Donald Trump 29% 
John Kasich 13% 
Undecided 13% 
Clout Research^{[181]}
Margin of error: ±4.75%

April 27, 2016  Donald Trump 37.1%  Ted Cruz 35.2% 
John Kasich 16.3% 
Undecided 11.4% 
CBS News/YouGov^{[182]}
Margin of error: ± 6.6%

April 20–22, 2016  Donald Trump 40%  Ted Cruz 35% 
John Kasich 20% 
Undecided 5% 
Fox News^{[183]}
Margin of error: ± 4%

April 18–21, 2016  Donald Trump 41% 
Ted Cruz 33% 
John Kasich 16% 
Undecided 7%, None 2% 
POS/Howey Politics Indiana/WTHR Channel^{[184]}
Margin of error: ± 4.3%

April 18–21, 2016  Donald Trump 37% 
Ted Cruz 31% 
John Kasich 22% 
Undecided 7%, Other 2% 
Bellwether^{[185]}
Margin of error: ± 3.5%

December 2–9, 2015  Donald Trump 26% 
Ted Cruz 17% 
Marco Rubio 17% 
Ben Carson 16%, Jeb Bush 6%, Rand Paul 5%, Chris Christie 3%, Carly Fiorina 3%, Rick Santorum 1%, Mike Huckabee 1%, John Kasich 1% 
Winner: Ted Cruz
Caucus date: February 1, 2016
Poll source  Date  1st  2nd  3rd  Other 

Caucus results^{[186]}  February 1, 2016  Ted Cruz 27.64% 
Donald Trump 24.30% 
Marco Rubio 23.12% 
Ben Carson 9.30%, Rand Paul 4.54%, Jeb Bush 2.80%, Carly Fiorina 1.86%, John Kasich 1.86%, Mike Huckabee 1.79%, Chris Christie 1.76%, Rick Santorum 0.95%, Jim Gilmore 0.01%, Other 0.06% 
Emerson College^{[187]}
Margin of error: ± 5.6%

January 29–31, 2016  Donald Trump 27.3% 
Ted Cruz 25.6% 
Marco Rubio 21.6% 
Mike Huckabee 4.7%, Jeb Bush 3.8%, John Kasich 3.8%, Rand Paul 3.4%, Ben Carson 3.4%, Chris Christie 3.2%, Carly Fiorina 1.7%, Rick Santorum 0.5%, Undecided 1% 
Quinnipiac University^{[188]}
Margin of error: ± 3.3% Sample size: 890 
January 25–31, 2016  Donald Trump 31% 
Ted Cruz 24% 
Marco Rubio 17% 
Ben Carson 8%, Jeb Bush 4%, Rand Paul 4%, Mike Huckabee 3%, Carly Fiorina 2%, John Kasich 2%, Chris Christie 1%, Rick Santorum 1%, Jim Gilmore 0%, Not decided 3% 
Opinion Savvy^{[189]}
Margin of error: ± 3.2%

January 29–30, 2016  Donald Trump 20.1% 
Ted Cruz 19.4% 
Marco Rubio 18.6% 
Ben Carson 9.0%, Rand Paul 8.6%, Jeb Bush 4.9%, Mike Huckabee 4.4%, John Kasich 4.0%, Carly Fiorina 3.8%, Chris Christie 3.0%, Rick Santorum 2.1%, Undecided 2.2% 
Des Moines Register/ Bloomberg/Selzer^{[190]} Margin of error: ± 3.5% Sample size: 602 
January 26–29, 2016  Donald Trump 28% 
Ted Cruz 23% 
Marco Rubio 15% 
Ben Carson 10%, Rand Paul 5%, Chris Christie 3%, Jeb Bush 2%, Mike Huckabee 2%, Carly Fiorina 2%, John Kasich 2%, Rick Santorum 2%, Jim Gimore 0%, Undecided 2%, Uncommitted 3% 
Public Policy Polling^{[191]}
Margin of error: ± 3.5% Sample size: 780 
January 26–27, 2016  Donald Trump 31% 
Ted Cruz 23% 
Marco Rubio 14% 
Ben Carson 9%, Jeb Bush 4%, Mike Huckabee 4%, Rand Paul 4%, Carly Fiorina 3%, John Kasich 2%, Chris Christie 2%, Rick Santorum 1%, Jim Gimore 1%, Undecided 2% 
NBC/WSJ/Marist^{[192]}
Margin of error: ± 4.8% Sample size: 415 
January 24–26, 2016  Donald Trump 32% 
Ted Cruz 25% 
Marco Rubio 18% 
Ben Carson 8%, Jeb Bush 4%, Carly Fiorina 2%, John Kasich 2%, Rand Paul 2%, Chris Christie 2%, Mike Huckabee 2%, Other 0%, Undecided 3% 
Monmouth University^{[193]}
Margin of error: ± 4.4%

January 23–26, 2016  Donald Trump 30% 
Ted Cruz 23% 
Marco Rubio 16% 
Ben Carson 10%, Jeb Bush 4%, Rand Paul 3%, John Kasich 3%, Mike Huckabee 3%, Chris Christie 2%, Carly Fiorina 2%, Rick Santorum 1%, Jim Gilmore 0%, Other 0%, Undecided 3% 
ARG^{[194]}
Margin of error: ± 5.0%

January 21–24, 2016  Donald Trump 33% 
Ted Cruz 26% 
Marco Rubio 11% 
Ben Carson 7%, Chris Christie 4%, Rand Paul 4%, Jeb Bush 3%, John Kasich 3%, Mike Huckabee 2%, Rick Santorum 1%, Carly Fiorina 1%, Jim Gilmore 0%, Other 1%, Undecided 5% 
Quinnipiac University^{[195]}
Margin of error: ± 3.8% Sample size: 651 
January 18–24, 2016  Donald Trump 31% 
Ted Cruz 29% 
Marco Rubio 13% 
Ben Carson 7%, Rand Paul 5%, Jeb Bush 4%, Chris Christie 3%, Mike Huckabee 2%, Carly Fiorina 1%, John Kasich 1%, Jim Gilmore 0%, Rick Santorum 0%, Not decided 2% 
ISU/WHOHD^{[196]}
Margin of error: ± ?%

January 5–22, 2016  Ted Cruz 25.8% 
Donald Trump 18.9% 
Ben Carson 13.4% 
Marco Rubio 12.3%, Rand Paul 6.9%, Jeb Bush 3.8%, Mike Huckabee 3.7%, Carly Fiorina 1.1%, Rick Santorum <1%, Chris Christie <1%, John Kasich <1% 
Fox News^{[197]}
Margin of error: ± 5.0%

January 18–21, 2016  Donald Trump 34% 
Ted Cruz 23% 
Marco Rubio 12% 
Ben Carson 7%, Rand Paul 6%, Chris Christie 4%, Jeb Bush 4%, John Kasich 2%, Mike Huckabee 2%, Rick Santorum 2%, Carly Fiorina 1%, Other 1%, Don't Know 2% 
CBS/YouGov^{[198]}
Margin of error: ± 5.9%

January 18–21, 2016  Donald Trump 39% 
Ted Cruz 34% 
Marco Rubio 13% 
Ben Carson 5%, Rand Paul 3%, Chris Christie 2%, Jeb Bush 1%, John Kasich 1%, Carly Fiorina 1%, Mike Huckabee 0%, Jim Gilmore 0%, No Preference 0% 
Emerson College^{[199]}
Margin of error: ± 5.9%

January 18–20, 2016  Donald Trump 33.1% 
Ted Cruz 22.8% 
Marco Rubio 14.2% 
Ben Carson 9.1%, Chris Christie 5.4%, Jeb Bush 5.1%, John Kasich 2.9%, Rand Paul 2.7%, Carly Fiorina 2.1%, Mike Huckabee 1.7%, Undecided 1% 
CNN/ORC^{[200]}
Margin of error: ± 6.0%

January 15–20, 2016  Donald Trump 37% 
Ted Cruz 26% 
Marco Rubio 14% 
Ben Carson 6%, Jeb Bush 3%, Mike Huckabee 3%, Rand Paul 2%, Carly Fiorina 1%, Rick Santorum 1%, Chris Christie 1%, John Kasich 1% 
Monmouth College/KBUR/Douglas Fulmer & Associates^{[201]}
Margin of error: ± 3.7%

January 18–19, 2016  Ted Cruz 27% 
Donald Trump 25% 
Ben Carson 11% 
Marco Rubio 9%, Jeb Bush 7%, Chris Christie 4%, Mike Huckabee 4%, Rand Paul 3%, John Kasich 3%, Carly Fiorina 3%, Rick Santorum 1%, Jim Gilmore 1%, Undecided 4% 
Loras College^{[202]}
Margin of error: ± 4.4%

January 13–18, 2016  Donald Trump 26% 
Ted Cruz 25% 
Marco Rubio 13% 
Ben Carson 8%, Jeb Bush 6%, John Kasich 4%, Chris Christie 3%, Mike Huckabee 3%, Rand Paul 3%, Carly Fiorina 2%, Rick Santorum 1%, Undecide 7% 
Public Policy Polling^{[203]}
Margin of error: ± 4.3%

January 8–10, 2016  Donald Trump 28% 
Ted Cruz 26% 
Marco Rubio 13% 
Ben Carson 8%, Jeb Bush 6%, Chris Christie 3%, Carly Fiorina 3%, Mike Huckabee 3%, John Kasich 3%, Rand Paul 3%, Rick Santorum 2%, Jim Gilmore 0%, Undecided 2% 
DM Register/Bloomberg^{[204]}
Margin of error: ± 4.4%

January 7–10, 2016  Ted Cruz 25% 
Donald Trump 22% 
Marco Rubio 12% 
Ben Carson 11%, Rand Paul 5%, Jeb Bush 4%, Chris Christie 3%, Mike Huckabee 3%, Carly Fiorina 2%, John Kasich 2%, Rick Santorum 1% 
ARG^{[205]}
Margin of error: ± 4.0% Sample size: 600 
January 6–10, 2016  Donald Trump 29% 
Ted Cruz 25% 
Marco Rubio 10% 
Ben Carson 8%, Chris Christie 6%, Rand Paul 4%, Jeb Bush 3%, John Kasich 3%, Mike Huckabee 2%, Rick Santorum 2%, Carly Fiorina 1%, Other 1%, Undecided 5% 
Quinnipiac University^{[206]}
Margin of error: ± 4.0% Sample size: 602 
January 5–10, 2016  Donald Trump 31% 
Ted Cruz 29% 
Marco Rubio 15% 
Ben Carson 7%, Chris Christie 4%, Jeb Bush 3%, Mike Huckabee 3%, Rand Paul 2%, John Kasich 2%, Carly Fiorina 1%, Rick Santorum 1%, Not decided 5% 
Fox News^{[207]}
Margin of error: ± 4.0% Sample size: 504 
January 4–7, 2016  Ted Cruz 27% 
Donald Trump 23% 
Marco Rubio 15% 
Ben Carson 9%, Jeb Bush 7%, Rand Paul 5%, Chris Christie 4%, Mike Huckabee 2%, Carly Fiorina 1%, John Kasich 1%, Rick Santorum 1%, Other 1%, Undecided 2% 
NBC/WSJ/Marist^{[208]}
Margin of error: ± 4.6% Sample size: 456 
January 2–7, 2016  Ted Cruz 28% 
Donald Trump 24% 
Marco Rubio 13% 
Ben Carson 11%, Rand Paul 5%, Jeb Bush 4%, Chris Christie 3%, Carly Fiorina 3%, Mike Huckabee 2%, John Kasich 2%, Other 1%, Undecided 3% 
Poll source  Date  1st  2nd  3rd  Other 

Gravis Marketing^{[209]}
Margin of error: ± 5.0%

December 18–21, 2015  Donald Trump 31% 
Ted Cruz 31% 
Marco Rubio 9% 
Ben Carson 7%, Jeb Bush 4%, Mike Huckabee 4%, Carly Fiorina 3%, Chris Christie 2%, John Kasich 2%, George Pataki 1%, Lindsey Graham 1%, Rand Paul 1%, Rick Santorum 0%, Unsure 5% 
CBS News/YouGov^{[210]}
Margin of error: ± 5.3%

December 14–17, 2015  Ted Cruz 40% 
Donald Trump 31% 
Marco Rubio 12% 
Ben Carson 6%, Jeb Bush 2%, Rand Paul 2%, Carly Fiorina 2%, Mike Huckabee 2%, Chris Christie 1%, John Kasich 1%, Rick Santorum 1%, Lindsey Graham 0%, Jim Gilmore 0%, George Pataki 0%, No preference 0% 
Public Policy Polling^{[211]}
Margin of error: ± 4.3%

December 10–13, 2015  Donald Trump 28% 
Ted Cruz 25% 
Marco Rubio 14% 
Ben Carson 10%, Jeb Bush 7%, Carly Fiorina 3%, Chris Christie 3%, Mike Huckabee 3%, Rand Paul 2%, John Kasich 2%, Rick Santorum 1%, Lindsey Graham 1%, Jim Gilmore 0%, George Pataki 0%, Undecided 1% 
Quinnipiac University^{[212]}
Margin of error: ± 3.3%

December 4–13, 2015  Donald Trump 28% 
Ted Cruz 27% 
Marco Rubio 14% 
Ben Carson 10%, Jeb Bush 5%, Rand Paul 4%, Carly Fiorina 3%, Chris Christie 3%, Mike Huckabee 1%, John Kasich 1%, Rick Santorum 0%, George Pataki 0%, Jim Gilmore 0%, Lindsey Graham 0%, DK 3% 
Loras College^{[213]}
Margin of error: ± 4.4%

December 7–10, 2015  Ted Cruz 29.7% 
Donald Trump 23.4% 
Ben Carson 10.8% 
Marco Rubio 10.6%, Jeb Bush 6.2%, Carly Fiorina 3.4%, Rand Paul 2.4%, Mike Huckabee 1.8%, John Kasich 1.0%, Rick Santorum 1.0%, Chris Christie 0.4%, Lindsey Graham 0.0%, Undecided 9.0% 
Fox News^{[214]}
Margin of error: ± 4.5%

December 7–10, 2015  Ted Cruz 28% 
Donald Trump 26% 
Marco Rubio 13% 
Ben Carson 10%, Jeb Bush 5%, Rand Paul 5%, Chris Christie 2%, Carly Fiorina 2%, Mike Huckabee 1%, John Kasich 1%, Rick Santorum 1%, George Pataki 1%, Jim Gilmore 0%, Lindsey Graham 0%, Uncommitted 1%, Other 1%, DK 3% 
DMR/Bloomberg^{[215]}
Margin of error: ± 4.9%

December 7–10, 2015  Ted Cruz 31% 
Donald Trump 21% 
Ben Carson 13% 
Marco Rubio 10%, Jeb Bush 6%, Chris Christie 3%, Mike Huckabee 3%, Rand Paul 3%, John Kasich 2%, Carly Fiorina 1%, Rick Santorum 1%, Jim Gilmore 0%, Lindsey Graham 0%, George Pataki 0%, Uncommitted 3%, Undecided 4% 
Monmouth University^{[216]}
Margin of error: ± 4.8%

December 3–6, 2015  Ted Cruz 24% 
Donald Trump 19% 
Marco Rubio 17% 
Ben Carson 13%, Jeb Bush 6%, Rand Paul 4%, Carly Fiorina 3%, John Kasich 3%, Chris Christie 2%, Mike Huckabee 2%, Rick Santorum 1%, Lindsey Graham <1%, George Pataki 0%, Jim Gilmore 0%, Uncommitted 1%, Undecided 4% 
CNN/ORC^{[217]}
Margin of error: ± 4.5%

November 28 December 6, 2015 
Donald Trump 33% 
Ted Cruz 20% 
Ben Carson 16% 
Marco Rubio 11%, Jeb Bush 4%, Carly Fiorina 3%, Rand Paul 3%, Chris Christie 2%, Mike Huckabee 2%, John Kasich 1%, Rick Santorum 1%, Lindsey Graham 0%, George Pataki 0%, Jim Gilmore 0%, No one 1%, Someone else 1%, No opinion 1% 
Quinnipiac University^{[218]}
Margin of error: ± 4.0%

November 16–22, 2015  Donald Trump 25% 
Ted Cruz 23% 
Ben Carson 18% 
Marco Rubio 13%, Rand Paul 5%, Jeb Bush 4%, Carly Fiorina 3%, Chris Christie 2%, Rick Santorum 2%, Mike Huckabee 2%, John Kasich 1%, George Pataki 0%, Lindsey Graham 0%, Jim Gilmore 0%, DK/NA 2% 
CBS News/YouGov^{[219]}
Margin of error: ± 6.2%

November 15–19, 2015  Donald Trump 30% 
Ted Cruz 21% 
Ben Carson 19% 
Marco Rubio 11%, Jeb Bush 5%, Carly Fiorina 4%, Chris Christie 2%, Rand Paul 2%, Rick Santorum 2%, Bobby Jindal 2%, John Kasich 1%, Mike Huckabee 1%, George Pataki 0%, Lindsey Graham 0%, Jim Gilmore 0% 
Iowa State University/WHOHD^{[220]}
Margin of error: ± ?

November 2–15, 2015  Ben Carson 27% 
Marco Rubio 17% 
Donald Trump 15% 
Ted Cruz 9%, Jeb Bush 5%, Rand Paul 3%, Carly Fiorina 2%, Mike Huckabee 1%, John Kasich 1%, Chris Christie 0%, Rick Santorum 0%, Lindsey Graham 0% 
CNN/ORC^{[221]}
Margin of error: ± 4.0%

October 29 – November 4, 2015  Donald Trump 25% 
Ben Carson 23% 
Marco Rubio 13% 
Ted Cruz 11%, Jeb Bush 5%, Carly Fiorina 4%, Bobby Jindal 4%, Chris Christie 3%, Lindsey Graham 2%, John Kasich 2%, Rand Paul 2%, Mike Huckabee 2%, Rick Santorum 0%, George Pataki 0%, Jim Gilmore 0%, No opinion 3% 
Gravis Marketing/One America News Network^{[222]}
Margin of error: ± 5.0%

October 30 – November 2, 2015  Donald Trump 29.4% 
Ben Carson 22.4% 
Marco Rubio 18.0% 
Ted Cruz 8.5%, Jeb Bush 6.0%, Carly Fiorina 5.2%, John Kasich 3.1%, Chris Christie 2.4%, Rand Paul 1.8%, Bobby Jindal 1.5%, Mike Huckabee 1.1%, Rick Santorum 0.4%, Lindsey Graham 0.3% 
Public Policy Polling^{[223]}
Margin of error: ± 3.9%

October 30 – November 1, 2015  Donald Trump 22% 
Ben Carson 21% 
Ted Cruz 14% 
Marco Rubio 10%, Bobby Jindal 6%, Mike Huckabee 6%, Jeb Bush 5%, Carly Fiorina 5%, Chris Christie 3%, Rick Santorum 2%, John Kasich 2%, Rand Paul 2%, Lindsey Graham 0%, George Pataki 0%, Jim Gilmore 0%, Undecided 1% 
KBUR/Monmouth University^{[224]}
Margin of error: ± 3.37%

October 29–31, 2015  Ben Carson 27.5% 
Donald Trump 20.4% 
Ted Cruz 15.1% 
Marco Rubio 10.1%, Jeb Bush 9.0%, Carly Fiorina 4.1%, Lindsey Graham 0.2%, Mike Huckabee 1.7%, John Kasich 1.9%, Rand Paul 1.6%, Chris Christie 2.3%, Bobby Jindal 1.3%, Rick Santorum 0.7%, Jim Gilmore 0.3%, George Pataki 0%, Undecided 3.8% 
Monmouth University^{[225]}
Margin of error: ± 4.9%

October 22–25, 2015  Ben Carson 32% 
Donald Trump 18% 
Ted Cruz 10% 
Marco Rubio 10%, Jeb Bush 8%, Carly Fiorina 5%, Rand Paul 3%, Bobby Jindal 2%, Mike Huckabee 2%, John Kasich 2%, Rick Santorum 1%, Chris Christie 1%, Lindsey Graham 0%, George Pataki 0%, Jim Gilmore 0%, Other 0%, Uncommitted 1%, Undecided 5% 
Loras College^{[226]}
Margin of error: ± 4.4%

October 19–22, 2015  Ben Carson 30.6% 
Donald Trump 18.6% 
Marco Rubio 10.0% 
Jeb Bush 6.8%, Ted Cruz 6.2%, Bobby Jindal 4.6%, Carly Fiorina 2.4%, Chris Christie 1.8%, Rand Paul 1.8%, John Kasich 1.4%, Mike Huckabee 1.2%, Rick Santorum 0.8%, Lindsey Graham 0.4%, George Pataki 0%, Undecided 12.8% 
CBS News/YouGov^{[227]}
Margin of error: ± 6.5%

October 15–22, 2015  Donald Trump 27% 
Ben Carson 27% 
Ted Cruz 12% 
Marco Rubio 9%, Jeb Bush 6%, Carly Fiorina 3%, Rand Paul 3%, Mike Huckabee 2%, John Kasich 2%, Bobby Jindal 2%, Rick Santorum 2%, Chris Christie 1%, Lindsey Graham 0%, George Pataki 0%, Jim Gilmore 0%, No preference 3% 
DMR/Bloomberg^{[228]}
Margin of error: ± 4.9%

October 16–21, 2015  Ben Carson 28% 
Donald Trump 19% 
Ted Cruz 10% 
Marco Rubio 9%, Rand Paul 5%, Jeb Bush 5%, Carly Fiorina 4%, Mike Huckabee 3%, John Kasich 2%, Bobby Jindal 2%, Rick Santorum 2%, Chris Christie 1%, Lindsey Graham 0%, George Pataki 0%, Jim Gilmore 0%, Not sure 7%, Uncommitted 3% 
Quinnipiac University^{[229]}
Margin of error: ± 4.1%

October 14–20, 2015  Ben Carson 28% 
Donald Trump 20% 
Marco Rubio 13% 
Ted Cruz 10%, Rand Paul 6%, Carly Fiorina 5%, Jeb Bush 5%, John Kasich 3%, Bobby Jindal 3%, Mike Huckabee 2%, Chris Christie 1%, Rick Santorum 1%, Lindsey Graham 0%, George Pataki 0%, Jim Gilmore 0%, Undecided 3% 
NBC/WSJ^{[230]}
Margin of error: ± 4.7%

October 2015  Donald Trump 24% 
Ben Carson 19% 
Carly Fiorina 8% 
Jeb Bush 7%, Ted Cruz 6%, Marco Rubio 6%, Bobby Jindal 6%, Mike Huckabee 5%, Rand Paul 4%, Chris Christie 4%, John Kasich 3%, Rick Santorum 1%, Lindsey Graham 1%, George Pataki <1%, Jim Gilmore <1%, Undecided 7% 
Gravis Marketing^{[231]}
Margin of error: ± 4.6%

October 2, 2015  Donald Trump 18.8% 
Ben Carson 14.1% 
Ted Cruz 10.6% 
Carly Fiorina 9.7%, Marco Rubio 8.9%, Jeb Bush 6.9%, John Kasich 2.6%, Rand Paul 2.4%, Mike Huckabee 1.8%, Lindsey Graham 1.8%, Bobby Jindal 1.7%, Chris Christie 1.4%, Rick Santorum 1.3%, George Pataki 0.3%, Unsure 17.9% 
Public Policy Polling^{[232]}
Margin of error: ± 4.4%

September 18–20, 2015  Donald Trump 24% 
Ben Carson 17% 
Carly Fiorina 13% 
Ted Cruz 8%, Marco Rubio 8%, Mike Huckabee 6%, Jeb Bush 6%, Scott Walker 5%, Rand Paul 4%, Bobby Jindal 4%, John Kasich 2%, Chris Christie 1%, Rick Santorum 1%, George Pataki 0%, Jim Gilmore 0%, Lindsey Graham 0%, Undecided 3% 
CBS News/YouGov^{[233]}
Margin of error: ± 5.7%

September 3–10, 2015  Donald Trump 29% 
Ben Carson 25% 
Ted Cruz 10% 
Marco Rubio 6%, Scott Walker 5%, Carly Fiorina 4%, Mike Huckabee 4%, Rick Santorum 3%, Jeb Bush 3%, Bobby Jindal 2%, John Kasich 2%, Rand Paul 2%, Chris Christie 1%, Jim Gilmore 1%, Lindsey Graham 0%, George Pataki 0%, Rick Perry 0%, No preference 4% 
Quinnipiac University^{[234]}
Margin of error: ± 3.0%

August 27 – September 8, 2015  Donald Trump 27% 
Ben Carson 21% 
Ted Cruz 9% 
Jeb Bush 6%, Carly Fiorina 5%, Marco Rubio 5%, John Kasich 5%, Rand Paul 4%, Mike Huckabee 4%, Scott Walker 3%, Bobby Jindal 2%, Chris Christie 1%, Rick Santorum 1%, Rick Perry 1%, Lindsey Graham 1%, George Pataki 0%, Jim Gilmore 0%, Undecided 4% 
NBC News/Marist^{[235]}
Margin of error: ± 5.0%

August 26 – September 2, 2015  Donald Trump 29% 
Ben Carson 22% 
Jeb Bush 6% 
Carly Fiorina 5%, Rand Paul 5%, Scott Walker 5%, Ted Cruz 4%, Marco Rubio 4%, Bobby Jindal 4%, Mike Huckabee 3%, Chris Christie 2%, John Kasich 2%, Rick Santorum 1%, Rick Perry 0%, Lindsey Graham 0%, George Pataki 0%, Jim Gilmore 0%, Undecided 8% 
Gravis Marketing/One America^{[236]}
Margin of error: ± 4.4%

August 29–31, 2015  Donald Trump 31.7% 
Ben Carson 15.8% 
Ted Cruz 6.9% 
Marco Rubio 5.8%, Scott Walker 5.6%, Bobby Jindal 5.2%, Carly Fiorina 4.6%, Jeb Bush 4.1%, Mike Huckabee 2.6%, Chris Christie 2.0%, John Kasich 1.4%, Rand Paul 1.3%, Rick Perry 0.9%, Rick Santorum 0.6%, Lindsey Graham 0.4%, George Pataki 0.1%, Undecided 10.9% 
Monmouth University^{[237]}
Margin of error: ± 4.9%

August 27–30, 2015  Donald Trump 23% 
Ben Carson 23% 
Carly Fiorina 10% 
Ted Cruz 9%, Scott Walker 7%, Jeb Bush 5%, John Kasich 4%, Marco Rubio 4%, Rand Paul 3%, Rick Santorum 2%, Bobby Jindal 1%, Chris Christie 1%, Rick Perry 1%, George Pataki 0%, Jim Gilmore 0%, Lindsey Graham 0%, Someone else 0%, Undecided 5% 
Des Moines Register/Bloomberg/Selzer^{[238]}
Margin of error: ± 4.9%

August 23–26, 2015  Donald Trump 23% 
Ben Carson 18% 
Ted Cruz 8% 
Scott Walker 8%, Jeb Bush 6%, Marco Rubio 6%, Carly Fiorina 5%, Mike Huckabee 4%, Rand Paul 4%, Chris Christie 2%, Bobby Jindal 2%, John Kasich 2%, Rick Perry 1%, Rick Santorum 1%, George Pataki 0%, Jim Gilmore 0%, Lindsey Graham 0%, Someone else 0%, Undecided 10% 
CNN/ORC^{[239]}
Margin of error: ± 2%

August 7–11, 2015  Donald Trump 22% 
Ben Carson 14% 
Scott Walker 9% 
Ted Cruz 8%, Carly Fiorina 7%, Mike Huckabee 7%, Jeb Bush 5%, Rand Paul 5%, Marco Rubio 5%, Chris Christie 3%, Lindsey Graham 2%, Bobby Jindal 2%, John Kasich 2%, Rick Perry 1%, Rick Santorum 1%, George Pataki 0%, Jim Gilmore 0%, Someone else 0%, No one 2%, No opinion 4% 
NBC/Marist^{[240]}^{[permanent dead link]}
Margin of error: ± 5.3%

July 14–21, 2015  Scott Walker 19% 
Donald Trump 17% 
Jeb Bush 12% 
Ben Carson 8%, Mike Huckabee 7%, Rand Paul 5%, Ted Cruz 4%, Marco Rubio 4%, Rick Perry 3%, Chris Christie 2%, John Kasich 2%, Bobby Jindal 1%, Carly Fiorina 1%, Lindsey Graham 1%, Rick Santorum 0%, George Pataki 0%, Jim Gilmore 0%, Undecided 14% 
Quinnipiac University^{[241]}
Margin of error: ± 3.8%

June 20–29, 2015  Scott Walker 18% 
Ben Carson 10% 
Donald Trump 10% 
Ted Cruz 9%, Rand Paul 9%, Jeb Bush 8%, Marco Rubio 7%, Mike Huckabee 5%, Rick Perry 4%, Rick Santorum 4%, Carly Fiorina 3%, Bobby Jindal 3%, John Kasich 2%, Chris Christie 1%, Lindsey Graham 1%, George Pataki 0%, DK/NA 5% 
Morning Consult^{[242]}
Margin of error: ± ?%

May 31 – June 8, 2015  Scott Walker 18% 
Jeb Bush 10% 
Mike Huckabee 10% 
Rand Paul 10%, Marco Rubio 7%, Chris Christie 6%, Ben Carson 5%, Donald Trump 5%, Ted Cruz 4%, Carly Fiorina 2%, Don't know/No opinion/Refused 21%, Someone else 3% 
Gravis Marketing^{[243]}
Margin of error: ± 5%

May 28–29, 2015  Scott Walker 17% 
Marco Rubio 13% 
Ben Carson 12% 
Jeb Bush 10%, Mike Huckabee 8%, Ted Cruz 6%, Rick Santorum 6%, Carly Fiorina 5%, Chris Christie 4%, Rand Paul 4%, Unsure 15% 
Des Moines Register^{[244]}
Margin of error: ± 4.9%

May 25–29, 2015  Scott Walker 17% 
Ben Carson 10% 
Rand Paul 10% 
Jeb Bush 9%, Mike Huckabee 9%, Marco Rubio 6%, Rick Santorum 6%, Ted Cruz 5%, Chris Christie 4%, Donald Trump 4%, Rick Perry 3%, Carly Fiorina 2%, John Kasich 2%, Lindsey Graham 1%, Bobby Jindal 1%, Uncommitted 4%, Not sure 7% 
Quinnipiac University^{[245]}
Margin of error: ± 3.8%

April 25 – May 4, 2015  Scott Walker 21% 
Rand Paul 13% 
Marco Rubio 13% 
Ted Cruz 12%, Mike Huckabee 11%, Ben Carson 7%, Jeb Bush 5%, Chris Christie 3%, Rick Perry 3%, Carly Fiorina 2%, John Kasich 2%, Rick Santorum 2%, Bobby Jindal 1%, Lindsey Graham 0%, Don't know/No answer 6% 
Public Policy Polling^{[246]}
Margin of error: ± 4.6%

April 23–26, 2015  Scott Walker 23% 
Marco Rubio 13% 
Jeb Bush 12% 
Mike Huckabee 10%, Rand Paul 10%, Ted Cruz 8%, Ben Carson 7%, Chris Christie 5%, Rick Perry 4%, Undecided 8% 
Loras College^{[247]}
Margin of error: ± 4.3%

April 21–23, 2015  Scott Walker 12.6% 
Marco Rubio 10% 
Jeb Bush 9.6% 
Mike Huckabee 8.6%, Ted Cruz 6.5%, Ben Carson 6.3%, Rand Paul 6.3%, Chris Christie 5.1%, Rick Santorum 3.5%, Donald Trump 3.1%, Rick Perry 2.6%, Carly Fiorina 1%, Bobby Jindal 1%, John Kasich 1%, Lindsey Graham 0%, Undecided 22.8% 
Gravis Marketing^{[248]}
Margin of error: ± 5%

April 13, 2015  Jeb Bush 16% 
Scott Walker 13% 
Marco Rubio 12% 
Ben Carson 9%, Rand Paul 9%, Mike Huckabee 8%, Ted Cruz 6%, Chris Christie 5%, Carly Fiorina 3%, Rick Santorum 2%, Undecided 17% 
Opinion Savvy^{[249]}
Margin of error: ± 4.16%

March 20, 2015  Scott Walker 29% 
Ben Carson 14% 
Jeb Bush 12% 
Mike Huckabee 11%, Ted Cruz 7%, Chris Christie 5%, Rand Paul 5%, Marco Rubio 5%, Donald Trump 3%, Other/Undecided 10% 
Quinnipiac University^{[250]}
Margin of error: ± 3.9%

February 16–23, 2015  Scott Walker 25% 
Rand Paul 13% 
Ben Carson 11% 
Mike Huckabee 11%, Jeb Bush 10%, Ted Cruz 5%, Marco Rubio 4%, Chris Christie 4%, Rick Santorum 4%, Rick Perry 3%, Bobby Jindal 2%, John Kasich 0%, Unsure 9% 
Gravis Marketing^{[251]}
Margin of error: ± 4%

February 12–13, 2015  Scott Walker 24% 
Jeb Bush 10% 
Rand Paul 10% 
Chris Christie 9%, Mike Huckabee 7%, Marco Rubio 7%, Rick Santorum 6%, Ben Carson 5%, Ted Cruz 4%, Carly Fiorina 3%, Unsure 15% 
NBC News/Marist^{[252]}
Margin of error: ± 5.5%

February 3–10, 2015  Mike Huckabee 17% 
Jeb Bush 16% 
Scott Walker 15% 
Chris Christie 9%, Rand Paul 7%, Ben Carson 6%, Marco Rubio 6%, Rick Santorum 5%, Rick Perry 4%, Ted Cruz 2%, Lindsey Graham 1%, Undecided 14% 
Selzer & Co.^{[253]}
Margin of error: ± 4.9%

January 26–29, 2015  Scott Walker 15% 
Rand Paul 14% 
Mitt Romney 13% 
Mike Huckabee 10%, Ben Carson 9%, Jeb Bush 8%, Ted Cruz 5%, Chris Christie 4%, Rick Santorum 4%, Marco Rubio 3%, Rick Perry 3%, Bobby Jindal 2%, Carly Fiorina 1%, John Kasich 1%, Donald Trump 1%, Mike Pence 0%, Uncommitted 2%, Not sure 5% 
Scott Walker 16% 
Rand Paul 15% 
Mike Huckabee 13% 
Ben Carson 10%, Jeb Bush 9%, Chris Christie 6%, Ted Cruz 6%, Rick Santorum 5%, Marco Rubio 4%, Rick Perry 3%, Bobby Jindal 2%, Carly Fiorina 1%, John Kasich 1%, Donald Trump 1%, Mike Pence 0%, Uncommitted 3%, Not sure 5%  
Loras College^{[254]}
Margin of error: ± 5.5%

January 21–26, 2015  Mitt Romney 13.7% 
Mike Huckabee 12.5% 
Ben Carson 10.5% 
Jeb Bush 9.9%, Scott Walker 8.3%, Rand Paul 6.7%, Ted Cruz 5.1%, Marco Rubio 4.2%, Chris Christie 3.8%, Rick Santorum 3.8%, Rick Perry 2.9%, Bobby Jindal 1.6%, Carly Fiorina 1%, John Kasich 1%, Lindsey Graham 0.3% Undecided 14.7% 
Mike Huckabee 14.4% 
Jeb Bush 13.1% 
Ben Carson 12.8% 
Scott Walker 9.9%, Rand Paul 7%, Chris Christie 5.4%, Ted Cruz 5.4%, Marco Rubio 4.2%, Rick Santorum 3.8%, Rick Perry 3.2%, Bobby Jindal 1.6%, Carly Fiorina 1.3%, John Kasich 1.3%, Lindsey Graham 0.6% Undecided 16%  
Gravis Marketing^{[255]}
Margin of error: ± 3%

January 5–7, 2015  Mitt Romney 21% 
Jeb Bush 14% 
Scott Walker 10% 
Mike Huckabee 9%, Rand Paul 8%, Ted Cruz 7%, Chris Christie 5%, Paul Ryan 5%, Marco Rubio 4%, Undecided 18% 
Poll source  Date  1st  2nd  3rd  Other 

Fox News^{[256]}
Margin of error: ± 5%

October 28–30, 2014  Mike Huckabee 13% 
Ben Carson 12% 
Paul Ryan 9% 
Jeb Bush 8%, Rand Paul 8%, Chris Christie 7%, Ted Cruz 7%, Rick Santorum 6%, Marco Rubio 5%, Scott Walker 5%, Rick Perry 3%, Bobby Jindal 1%, John Kasich 1%, Rob Portman 0%, Other 1%, None of the above 4%, Don't know 10% 
Reuters/Ipsos^{[257]}
Margin of error: ± 4.0%

October 23–29, 2014  Mitt Romney 17% 
Paul Ryan 13% 
Chris Christie 12% 
Jeb Bush 10%, Scott Walker 10%, Rand Paul 8%, Ted Cruz 7%, Marco Rubio 6%, Rick Santorum 6%, Rick Perry 5%, Wouldn't vote 7% 
Selzer & Co.^{[258]}
Margin of error: ± 4.8%

October 1–7, 2014  Mitt Romney 17% 
Ben Carson 11% 
Rand Paul 10% 
Mike Huckabee 9%, Paul Ryan 8%, Ted Cruz 7%, Rick Perry 7%, Chris Christie 6%, Jeb Bush 4%, Scott Walker 4%, Rick Santorum 3%, Marco Rubio 2%, Bobby Jindal 1%, John Kasich 1%, Mike Pence 0%, Rob Portman 0%, Uncommitted 1%, Not sure 9% 
CNN/ORC^{[259]}
Margin of error: ± 5.5%

September 8–10, 2014  Mike Huckabee 21% 
Paul Ryan 12% 
Rand Paul 7% 
Jeb Bush 6%, Chris Christie 6%, Rick Perry 5%, Marco Rubio 5%, Scott Walker 5%, Ted Cruz 4%, Bobby Jindal 4%, Rick Santorum 3% 
Suffolk University^{[260]}
Margin of error: ± 6.83%

August 23–26, 2014  Mike Huckabee 13.11% 
Chris Christie 10.68% 
Rick Perry 8.74% 
Jeb Bush 7.28%, Rand Paul 6.8%, Paul Ryan 6.31%, Rick Santorum 5.83%, Marco Rubio 5.34%, Ted Cruz 4.85%, Scott Walker 4.37%, Bobby Jindal 2.91%, Jon Huntsman Jr. 0.97%, John Kasich 0.97%, Other 4.37%, Undecided 16.99%, Refused 0.49% 
Mitt Romney 35.29% 
Mike Huckabee 8.82% 
Chris Christie 6.47% 
Rick Santorum 5.88%, Ted Cruz 5.29%, Rand Paul 5.29%, Jeb Bush 4.71, Rick Perry 4.71%, Paul Ryan 4.12%, Scott Walker 3.53%, Marco Rubio 2.35%, Bobby Jindal 1.76%, Jon Huntsman Jr. 1.18%, John Kasich 0.59%, Undecided 10%  
NBC News/Marist^{[261]}
Margin of error: ± 4.1%

July 7–13, 2014  Jeb Bush 12% 
Rand Paul 12% 
Paul Ryan 11% 
Rick Santorum 9%, Chris Christie 8%, Ted Cruz 7%, Rick Perry 7%, Marco Rubio 7%, Scott Walker 5%, Bobby Jindal 1%, Undecided 20% 
Vox Populi Polling^{[262]}
Margin of error: ± 6.6%

June 4–5, 2014  Jeb Bush 18% 
Mike Huckabee 15% 
Paul Ryan 13% 
Rand Paul 12%, Marco Rubio 11%, Rick Santorum 10%, Ted Cruz 9%, Chris Christie 6%, Scott Walker 6% 
Public Policy Polling^{[263]}
Margin of error: ± 5.6%

May 15–19, 2014  Mike Huckabee 20% 
Ted Cruz 15% 
Jeb Bush 12% 
Rand Paul 10%, Chris Christie 9%, Paul Ryan 8%, Scott Walker 6%, Marco Rubio 4%, Rick Santorum 3%, Someone else/Not sure 13% 
The Daily Caller/Vox Populi Polling^{[264]}
Margin of error: ± 8.4%

April 22–24, 2014  Mike Huckabee 20% 
Paul Ryan 19% 
Jeb Bush 18% 
Ted Cruz 9%, Marco Rubio 9%, Rand Paul 8%, Chris Christie 7%, Scott Walker 6%, Joe Scarborough 4% 
Magellan Strategies^{[265]}
Margin of error: ± 5%

April 14–15, 2014  Jeb Bush 17% 
Mike Huckabee 17% 
Chris Christie 14% 
Rand Paul 11%, Ted Cruz 10%, Scott Walker 8%, John Kasich 5%, Marco Rubio 2%, Undecided 16% 
Loras College^{[266]}
Margin of error: ± 4%

April 7–8, 2014  Mike Huckabee 14.7% 
Jeb Bush 10.7% 
Rand Paul 8.5% 
Paul Ryan 8.3%, Chris Christie 8%, Ted Cruz 6.2%, Marco Rubio 4.7%, Rick Santorum 4.7%, Scott Walker 4.7%, Rick Perry 3%, John Kasich 0.7%, Other 0.7%, Undecided 23.8% 
Suffolk University^{[267]}
Margin of error: ± 8.7%

April 3–8, 2014  Mike Huckabee 11.02% 
Jeb Bush 10.24% 
Rand Paul 10.24% 
Ted Cruz 9.45%, Ben Carson 8.66%, Chris Christie 7.09%, Paul Ryan 6.3%, Sarah Palin 5.51%, Condoleezza Rice 5.51%, Marco Rubio 5.51%, Rick Santorum 5.51%, Scott Walker 5.51%, Bobby Jindal 3.15%, Rick Perry 3.15%, Undecided 3.15% 
WPA Research^{[268]}
Margin of error: ± ?

March 30, 2014  Mike Huckabee 14% 
Rand Paul 10% 
Scott Walker 8% 
Jeb Bush 7%, Ted Cruz 7%, Paul Ryan 7%, Chris Christie 6%, Rick Santorum 5%, Rick Perry 3%, Marco Rubio 3%, Bobby Jindal 2%, Other 2%, Undecided 26% 
Public Policy Polling^{[269]}
Margin of error: ± 5.8%

February 20–23, 2014  Mike Huckabee 17% 
Rand Paul 14% 
Jeb Bush 13% 
Chris Christie 10%, Ted Cruz 10%, Paul Ryan 9%, Bobby Jindal 7%, Scott Walker 7%, Marco Rubio 3%, Other/Undecided 11% 
Poll source  Date  1st  2nd  3rd  Other 

Cygnal^{[270]}
Margin of error: ± 2.37%

July 10–12, 2013  Marco Rubio 11.4% 
Rand Paul 10.5% 
Paul Ryan 9.3% 
Jeb Bush 8.7%, Chris Christie 7.7%, Rick Santorum 6.7%, Ted Cruz 6.1%, Scott Walker 2.1%, Bobby Jindal 1.3%, Undecided 36.3% 
Public Policy Polling^{[271]}
Margin of error: ± 6.2%

July 5–7, 2013  Rand Paul 18% 
Chris Christie 16% 
Paul Ryan 15% 
Jeb Bush 14%, Marco Rubio 11%, Ted Cruz 10%, Rick Santorum 6%, Bobby Jindal 2%, Susana Martinez 1%, Other/Undecided 7% 
Public Policy Polling^{[272]}
Margin of error: ± 5.4%

Feb. 1–3, 2013  Mike Huckabee 16% 
Marco Rubio 16% 
Rand Paul 15% 
Jeb Bush 14%, Chris Christie 12%, Paul Ryan 10%, Susana Martinez 4%, Bobby Jindal 3%, Rick Perry 3%, Someone Else/Undecided 7% 
Public Policy Polling^{[273]}
Margin of error: 5.1%

July 12–15, 2012  Rick Santorum 17% 
Mike Huckabee 17% 
Chris Christie 16% 
Rand Paul 11%, Marco Rubio 10%, Jeb Bush 8%, Paul Ryan 6%, Sarah Palin 4%, Scott Walker 4%, Someone else/Not sure 8% 
Public Policy Polling^{[274]}
Margin of error: 5.3%

May 3–5, 2012  Rick Santorum 16% 
Mike Huckabee 16% 
Chris Christie 15% 
Jeb Bush 10%, Sarah Palin 10%, Rand Paul 9%, Marco Rubio 7%, Paul Ryan 5% Someone else/Not sure 10% 
Winner: Ted Cruz
Caucus date: March 5, 2016
Poll source  Date  1st  2nd  3rd  Other 

Caucus results^{[275]}  March 5, 2016  Ted Cruz 47.50% 
Donald Trump 23.35% 
Marco Rubio 16.83% 
John Kasich 11.07%, Ben Carson 0.74%, Jeb Bush 0.11%, Carly Fiorina 0.05% 
Trafalgar Group^{[276]}
Margin of error: ± 2.96%

March 2–3, 2016  Donald Trump 35.18% 
Ted Cruz 29.31% 
Marco Rubio 16.56% 
John Kasich 12.66%, Undecided 6.29% 
Fort Hays State University^{[277]}
Margin of error: ± 5.0%

February 26, 2016  Donald Trump 26% 
Ted Cruz 14% 
Marco Rubio 13% 
John Kasich 3%, Ben Carson 3%, Other 2%, Undecided 39% 
Suffolk University^{[278]}
Margin of error: ± ?

September 27–30, 2014  Jeb Bush 15.36% 
Mike Huckabee 14.23% 
Chris Christie 8.99% 
Ted Cruz 7.87%, Rick Perry 6.74%, Paul Ryan 5.99%, Rand Paul 5.62%, Marco Rubio 5.62%, Scott Walker 3.75%, Rick Santorum 1.5%, Bobby Jindal 1.12%, John Kasich 0.75%, Carly Fiorina 0.37%, Other 4.12%, Undecided/Refused 17.97% 
Mitt Romney 33.33% 
Jeb Bush 10.5% 
Mike Huckabee 10.5% 
Ted Cruz 6.85%, Chris Christie 6.39%, Rick Perry 5.02%, Rand Paul 4.57%, Marco Rubio 4.11%, Paul Ryan 2.74%, Scott Walker 2.28%, Rick Santorum 1.83%, Bobby Jindal 1.37%, Carly Fiorina 0.46%, John Kasich 0.46%, Undecided/Refused 9.59%  
Public Policy Polling^{[279]}
Margin of error: ±5.1%

February 18–20, 2014  Mike Huckabee 20% 
Jeb Bush 13% 
Chris Christie 13% 
Ted Cruz 12%, Rand Paul 11%, Paul Ryan 7%, Marco Rubio 5%, Scott Walker 4%, Bobby Jindal 2%, Someone Else/Undecided 13% 
Winner: Donald Trump
Caucus date: March 5, 2016
Poll source  Date  1st  2nd  3rd  Other 

Caucus results^{[280]}  March 5, 2016  Donald Trump 35.92% 
Ted Cruz 31.57% 
Marco Rubio 16.36% 
John Kasich 14.42%, Ben Carson 0.85%, Rand Paul 0.38%, Jeb Bush 0.13%, Mike Huckabee 0.08%, Carly Fiorina 0.03%, Chris Christie 0.03%, Rick Santorum 0.01% 
Western Kentucky University^{[281]}
Margin of error: ± 4.3%

February 22–26, 2016  Donald Trump 35% 
Marco Rubio 22% 
Ted Cruz 15% 
Ben Carson 7%, John Kasich 6% 
Public Policy Polling^{[282]}
Margin of error: ± 4.8%

June 18–21, 2015  Rand Paul 19% 
Jeb Bush 13% 
Donald Trump 12% 
Scott Walker 11%, Mike Huckabee 10%, Marco Rubio 10%, Ben Carson 7%, Ted Cruz 4%, Carly Fiorina 4%, Someone else/Not sure 9% 
CourierJournal/SurveyUSA^{[283]}
Margin of error: ± 4.4%

May 5–10, 2015  Rand Paul 26% 
Mike Huckabee 15% 
Jeb Bush 12% 
Scott Walker 10%, Ben Carson 7%, Marco Rubio 6%, Ted Cruz 6%, Chris Christie 2%, Rick Perry, 2%, Rick Santorum 2%, Bobby Jindal 2%, Carly Fiorina 1%, Other 2%, Undecided 8% 
Public Policy Polling^{[284]}
Margin of error: ± 5%

August 7–10, 2014  Rand Paul 25% 
Mike Huckabee 18% 
Jeb Bush 15% 
Chris Christie 8%, Marco Rubio 8%, Ted Cruz 7%, Scott Walker 5%, Paul Ryan 4%, Bobby Jindal 3%, Someone else/Not sure 6% 
Public Policy Polling^{[285]}
Margin of error: ± 4.2%

December 12–15, 2013  Rand Paul 34% 
Jeb Bush 20% 
Chris Christie 12% 
Ted Cruz 7%, Marco Rubio 5%, Paul Ryan 5%, Bobby Jindal 3%, Rick Santorum 2%, Scott Walker 2%, Someone Else/Undecided 10% 
Public Policy Polling^{[286]}
Margin of error: ± 5.5%

April 5–7, 2013  Rand Paul 31% 
Marco Rubio 17% 
Jeb Bush 13% 
Chris Christie 10%, Bobby Jindal 4%, Paul Ryan 3%, Rick Perry 2%, Rick Santorum 2%, Susana Martinez 1%, Someone Else/Undecided 16% 
Winner: Donald Trump
Primary date: March 5, 2016
Poll source  Date  1st  2nd  3rd  Other 

Primary results^{[287]}  March 5, 2016  Donald Trump 41.45% 
Ted Cruz 37.83% 
Marco Rubio 11.22% 
John Kasich 6.43%, Ben Carson 1.51%, Jeb Bush 0.71%, Rand Paul 0.22%, Mike Huckabee 0.21%, Chris Christie 0.13%, Carly Fiorina 0.08%, Rick Santorum 0.06%, Lindsey Graham 0.05% 
Gravis Marketing/ One America News^{[288]} Margin of error: ± 3%

March 3, 2016  Donald Trump 48% 
Ted Cruz 31% 
Marco Rubio 15% 
John Kasich 6% 
University of New Orleans^{[289]}
Margin of error: ± 2.26%

March 2, 2016  Donald Trump 38% 
Ted Cruz 26% 
Marco Rubio 11% 
John Kasich 5%, Don't Care 20% 
Trafalgar Group^{[290]}
Margin of error: ± 2.73%

March 1–2, 2016  Donald Trump 44.15% 
Ted Cruz 25.92% 
Marco Rubio 14.84% 
Ben Carson 5.72%, John Kasich 5.17%, Undecided 4.2% 
Magellan Strategies^{[291]}
Margin of error: ± 3.9%

March 1, 2016  Donald Trump 41% 
Ted Cruz 21% 
Marco Rubio 15% 
John Kasich 9%, Ben Carson 5% 
WWLTV/Advocate^{[292]}
Margin of error: ± 3.46%

September 20–23, 2015  Ben Carson 23% 
Donald Trump 19%  Jeb Bush 10% 
Marco Rubio 9%, Carly Fiorina 7%, Ted Cruz 6%, Mike Huckabee 4%, Bobby Jindal 3%, John Kasich 3%, Chris Christie 2%, Others 1%, Undecided 13% 
Opinion Savvy/Insider Advantage^{[293]}
Margin of error: ± 4.4%

August 2, 2015  Donald Trump 28.9% 
Jeb Bush 16.6% 
Mike Huckabee 9.8% 
Ted Cruz 9.4%, Ben Carson 8.4%, Bobby Jindal 6%, Scott Walker 4.3%, Marco Rubio 3.8% John Kasich 2.6%, Chris Christie 2.4%, Rick Perry 2.1%, Carly Fiorina 1.5%, Rand Paul 1%, Lindsey Graham 0.3%, Rick Santourm 0.1%, George Pataki 0%, Someone else 0.8%, Undecided 2.1% 
Public Policy Polling^{[294]}
Margin of error: ± 5.6%

June 26–29, 2014  Ted Cruz 19% 
Jeb Bush 17% 
Mike Huckabee 17% 
Bobby Jindal 12%, Rand Paul 10%, Chris Christie 6%, Marco Rubio 4%, Paul Ryan 4%, Scott Walker 3%, Other/Undecided 8% 
Magellan Strategies^{[295]}
Margin of error: ± 6%

February 6–9, 2014  Jeb Bush 25% 
Mike Huckabee 17% 
Ted Cruz 13% 
Rand Paul 9%, Marco Rubio 9%, Chris Christie 8%, Scott Walker 4%, John Kasich 2% Undecided 13% 
Public Policy Polling^{[296]}
Margin of error: ± 5.6%

February 6–9, 2014  Mike Huckabee 20% 
Bobby Jindal 13% 
Ted Cruz 12% 
Rand Paul 10%, Jeb Bush 9%, Chris Christie 8%, Paul Ryan 8%, Marco Rubio 7%, Scott Walker 2%, Someone Else/Undecided 12% 
Public Policy Polling^{[297]}
Margin of error: ± 5.9%

Aug. 16–19, 2013  Rand Paul 18% 
Jeb Bush 17% 
Paul Ryan 11% 
Chris Christie 10%, Bobby Jindal 10%, Ted Cruz 8%, Marco Rubio 8%, Rick Santorum 5%, Susana Martinez 0%, Someone Else/Undecided 13% 
Public Policy Polling^{[298]}
Margin of error: ± 4%

Feb. 8–12, 2013  Marco Rubio 21% 
Mike Huckabee 18% 
Bobby Jindal 14% 
Chris Christie 11%, Jeb Bush 9%, Rand Paul 8%, Paul Ryan 7%, Rick Perry 3%, Susana Martinez 1%, Someone Else/Undecided 7% 
Winner: Ted Cruz
Caucus date: March 5, 2016
Poll source  Date  1st  2nd  3rd  Other 

Caucus results^{[299]}  March 5, 2016  Ted Cruz 45.90% 
Donald Trump 32.59% 
John Kasich 12.19% 
Marco Rubio 8.01%, Ben Carson 0.71%, Rand Paul 0.30%, Jeb Bush 0.17%, Carly Fiorina 0.09%, Mike Huckabee 0.05% 
Public Policy Polling^{[300]}
Margin of error: ±5.4%

November 8–11, 2013  Chris Christie 27% 
Ted Cruz 14% 
Jeb Bush 12% 
Rand Paul 10%, Paul Ryan 9%, Marco Rubio 4%, Bobby Jindal 2%, Rick Santorum 1%, Scott Walker 1%, Someone Else/Undecided 20% 
Winner: Donald Trump
Primary date: April 26, 2016
Poll source  Date  1st  2nd  3rd  Other 

Primary results^{[301]}  April 26, 2016  Donald Trump 54.45% 
John Kasich 23.03% 
Ted Cruz 18.88% 
Ben Carson 1.30%, Marco Rubio 0.68%, Jeb Bush 0.56%, Rand Paul 0.34%, Chris Christie 0.27%, Carly Fiorina 0.22%, Mike Huckabee 0.18%, Rick Santorum 0.10% 
ARG^{[302]}
Margin of error: ± 5%

April 21–24, 2016  Donald Trump 55% 
John Kasich 21% 
Ted Cruz 19% 
Undecided 5% 
Public Policy Polling^{[303]}
Margin of error: ± 5.7%

April 15–17, 2016  Donald Trump 43% 
John Kasich 29% 
Ted Cruz 24% 
Undecided 5% 
Monmouth University^{[304]}
Margin of error: ± 5.7%

April 10–11, 2016  Donald Trump 47% 
John Kasich 27% 
Ted Cruz 19% 
Other 1%, Undecided 7% 
NBC4/Marist^{[305]}
Margin of error: ± 5.1%

April 5–9, 2016  Donald Trump 41% 
Ted Cruz 29% 
John Kasich 24% 
Other 1%, Undecided 6% 
Washington Post/University of Maryland^{[306]}
Margin of error: ± 7.5%

March 30–April 3, 2016  Donald Trump 41% 
John Kasich 31% 
Ted Cruz 22% 
Other 6% 
Baltimore Sun/University of Baltimore^{[307]}
Margin of error: ± 4.9%

March 4–8, 2016  Donald Trump 34% 
Ted Cruz 25% 
John Kasich 18% 
Marco Rubio 14%, Other 1%, Undecided 9% 
Gonzales Research^{[308]}
Margin of error: ± 5.8%

January 11–16, 2016  Donald Trump 31.9% 
Ted Cruz 15.0% 
Marco Rubio 13.6% 
Ben Carson 9.3%, Chris Christie 8.0%, Jeb Bush 4.0%, Someone else 5.6%, Undecided 12.6% 
Baltimore Sun/University of Baltimore^{[309]}
Margin of error: ± 5.6%

November 13–17, 2015  Ben Carson 27% 
Donald Trump 23% 
Marco Rubio 16% 
Ted Cruz 10%, John Kasich 4%, Chris Christie 3%, Carly Fiorina 3%, Jeb Bush 3%, Mike Huckabee 1%, Rand Paul 1%, Other/Unsure 9% 
Baltimore Sun^{[310]}
Margin of error: ± 4.4%

February 8–12, 2014  Ben Carson 24% 
Jeb Bush 15% 
Chris Christie 14% 
Rand Paul 14%, Marco Rubio 12%, Undecided/Other 21% 
Winner: Donald Trump
Primary date: March 1, 2016
Poll source  Date  1st  2nd  3rd  Other 

Primary results^{[311]}  March 1, 2016  Donald Trump 48.99% 
John Kasich 17.94% 
Marco Rubio 17.75% 
Ted Cruz 9.50%, Ben Carson 2.57%, Jeb Bush 1.03%, Chris Christie 0.30%, Rand Paul 0.29%, Carly Fiorina 0.18%, Jim Gilmore 0.12%, Mike Huckabee 0.11%, Mike Huckabee 0.08%, George Pataki 0.08%, Rick Santorum 0.05% 
Emerson College^{[312]}
Margin of error: ± 4.8% Sample size: 408 
February 26–28, 2016  Donald Trump 51% 
Marco Rubio 20% 
John Kasich 14% 
Ted Cruz 10%, Ben Carson 1%, Undecided 1% 
UMass Amherst/WBZ^{[313]}
Margin of error: ± 6.3% Sample size: 292 
February 24–26, 2016  Donald Trump 47% 
Marco Rubio 15% 
Ted Cruz 15% 
John Kasich 11%, Ben Carson 2%, Other 7%, Don't Know 3% 
Suffolk University^{[314]}
Margin of error: ± 4.4% Sample size: 500 
February 24–26, 2016  Donald Trump 42.6% 
Marco Rubio 19.8% 
John Kasich 17% 
Ted Cruz 8.8%, Ben Carson 3.8%, Other 1%, Don't Know 7% 
MassINC/WBUR^{[315]}
Margin of error: ± 4.9% Sample size: 386 
February 21–23, 2016  Donald Trump 39% 
Marco Rubio 18% 
John Kasich 17% 
Ted Cruz 9%, Ben Carson 5%, Don't Know 12% 
Emerson College^{[316]}
Margin of error: ± 5.7% Sample size: 289 
February 19–21, 2016  Donald Trump 50% 
Marco Rubio 16% 
John Kasich 13% 
Ted Cruz 10%, Ben Carson 2% 
Suffolk University^{[317]}
Margin of error: ± ?%

November 19–22, 2015  Donald Trump 32% 
Marco Rubio 18% 
Ted Cruz 10%  Jeb Bush 7%, Ben Carson 5%, Carly Fiorina 4%, Chris Christie 4%, John Kasich 2%, Rand Paul 1%, Mike Huckabee 0%, Rick Santorum 0%, Lindsey Graham 0%, George Pataki 0%, Jim Gilmore 0%, Undecided 14% 
Emerson College^{[318]}
Margin of error: ± 5.9%

October 16–18, 2015  Donald Trump 47.8% 
Ben Carson 13.9% 
Marco Rubio 11.8% 
Jeb Bush 7.1%, Carly Fiorina 6.5%, Ted Cruz 5.1%, John Kasich 2.8%, Chris Christie 2.3%, Lindsey Graham 0.9%, Mike Huckabee 0.4%, Rand Paul 0.1%, Undecided 1.4% 
Emerson College^{[319]}
Margin of error: ± ?

March 14–19, 2015  Jeb Bush 19% 
Scott Walker 19% 
Ben Carson 13% 
Rand Paul 7%, Chris Christie 6%, Ted Cruz 6%, Mike Huckabee 3%, Other/Undecided 28% 
Suffolk University^{[320]}
Margin of error: ± 4.9%

August 21–24, 2014  Chris Christie 11% 
Paul Ryan 11% 
Jeb Bush 10.75% 
Rand Paul 10.5%, Mike Huckabee 7%, Scott Walker 6.75%, Marco Rubio 5.75%, Rick Perry 4.75%, Ted Cruz 4.25%, Bobby Jindal 3.5%, Rick Santorum 2.75%, Jon Huntsman Jr. 1.75%, John Kasich 1%, Undecided 18.25%, Other 0.5%, Refused 0.5% 
Mitt Romney 48.62% 
Chris Christie 7.69% 
Paul Ryan 5.54% 
Jeb Bush 5.23%, Ted Cruz 3.69%, Jon Huntsman Jr. 3.38%, Bobby Jindal 3.38%, Rand Paul 3.38%, Scott Walker 3.38%, Mike Huckabee 3.08%, Marco Rubio 2.77%, Rick Perry 1.54%, John Kasich 1.23%, Rick Santorum 1.23%, Undecided 4.92%, Refused 0.92% 
Winner: Donald Trump
Primary date: March 8, 2016
Poll source  Date  1st  2nd  3rd  Other 

Primary results^{[321]}  March 8, 2016  Donald Trump 36.55% 
Ted Cruz 24.68% 
John Kasich 24.26% 
Marco Rubio 9.34%, Ben Carson 1.61%, Jeb Bush 0.81%, Rand Paul 0.29%, Chris Christie 0.24%, Mike Huckabee 0.20%, Rick Santorum 0.13%, Carly Fiorina 0.11%, George Pataki 0.04%, Lindsey Graham 0.03% 
FOX 2 Detroit/ Mitchell Research^{[322]} Margin of error: ± 4.5% Sample size: 472 
March 7, 2016  Donald Trump 41% 
John Kasich 23% 
Ted Cruz 18% 
Marco Rubio 8%, Ben Carson 3%, Other 1%, Undecided 6% 
FOX 2 Detroit/ Mitchell Research^{[323]} Margin of error: ± 3.8% Sample size: 663 
March 6, 2016  Donald Trump 42% 
John Kasich 19.6% 
Ted Cruz 19.3% 
Marco Rubio 9%, Ben Carson 4%, Other 1%, Undecided 5% 
Trafalgar Group^{[324]}
Margin of error: ± 2.42% Sample size: 1610 
March 5–6, 2016  Donald Trump 40.89% 
Ted Cruz 23.26% 
John Kasich 23.04% 
Marco Rubio 8.34%, Undecided 4.47% 
Monmouth University^{[325]}
Margin of error: ± 4.9% Sample size: 402 
March 3–6, 2016  Donald Trump 36% 
Ted Cruz 23% 
John Kasich 21% 
Marco Rubio 13%, Other 1%, Undecided 5% 
ARG^{[326]}
Margin of error: ± 5% Sample size: 400 
March 4–5, 2016  John Kasich 33% 
Donald Trump 31% 
Ted Cruz 15% 
Marco Rubio 11%, Ben Carson 6%, Other 1%, Undecided 4% 
CBS News/YouGov^{[327]}
Margin of error: ± 5.9% Sample size: 638 
March 2–4, 2016  Donald Trump 39% 
Ted Cruz 24% 
Marco Rubio 16% 
John Kasich 15%, Ben Carson 5% 
NBC News/WSJ/Marist^{[328]}
Margin of error: ± 3.3% Sample size: 877 
March 1–3, 2016  Donald Trump 41% 
Ted Cruz 22% 
Marco Rubio 17% 
John Kasich 13%, Uncommitted 2%, Other 2%, Undecided 5% 
Trafalgar Group^{[329]}
Margin of error: ± 2.42% Sample size: 1643 
March 2–3, 2016  Donald Trump 41.87% 
Ted Cruz 20.45% 
John Kasich 18.14% 
Marco Rubio 13.79%, Undecided 5.75% 
Michigan State University^{[330]}
Margin of error: ± 5.8% Sample size: 262 
January 25 – March 3, 2016  Donald Trump 36.1% 
Ted Cruz 19.5% 
Marco Rubio 18.1% 
John Kasich 8.9%, Other 7% 
FOX 2 Detroit/ Mitchell Research^{[331]} Margin of error: ± 3.86% Sample size: 643 
March 2, 2016  Donald Trump 42% 
Ted Cruz 19% 
Marco Rubio 15% 
John Kasich 14%, Ben Carson 5%, Other 1%, Undecided 5% 
FOX 2 Detroit/ Mitchell Research^{[332]} Margin of error: ± 3.76% Sample size: 679 
March 1, 2016  Donald Trump 39% 
Marco Rubio 19% 
Ted Cruz 14% 
John Kasich 12%, Ben Carson 9%, Other 2%, Undecided 7% 
EPIC/MRA^{[333]}
Margin of error: ± 4.9% Sample size: 400 
February 27–29, 2016  Donald Trump 29% 
Ted Cruz 19% 
Marco Rubio 18% 
John Kasich 8%, Ben Carson 8%, Undecided 18% 
MRG^{[334]}
Margin of error: ± ?% Sample size: 217 
February 22–27, 2016  Donald Trump 33% 
Marco Rubio 18% 
Ted Cruz 18% 
John Kasich 10%, Ben Carson 9%, Other/Undecided 12% 
Target Insyght^{[335]}
Margin of error: ± 5% Sample size: 400 
February 22–24, 2016  Donald Trump 41% 
Marco Rubio 17% 
Ted Cruz 14% 
John Kasich 12%, Ben Carson 8%, Undecided 6% 
FOX 2 Detroit/ Mitchell Research^{[336]} Margin of error: ± 4.57% Sample size: 459 
February 23, 2016  Donald Trump 41% 
Marco Rubio 19% 
Ted Cruz 16% 
John Kasich 11%, Ben Carson 7%, Other 1%, Undecided 5% 
ARG^{[337]}
Margin of error: ± 5% Sample size: 400 
February 19–20, 2016  Donald Trump 35% 
John Kasich 17% 
Ted Cruz/ Marco Rubio 12% 
Ben Carson 9%, Jeb Bush 4%, Other 1%, Undecided 10% 
Detroit News/WDIVTV^{[338]}
Margin of error: ± 4% Sample size: 600 
February 14–16, 2016  Donald Trump 25.2% 
Ted Cruz 15% 
Marco Rubio 11.8% 
John Kasich 10.5%, Ben Carson 9%, Jeb Bush 5.3%, Refused 1.9%, Undecided 21.3% 
FOX 2 Detroit/ Mitchell Research^{[339]} Margin of error: ± 4.94% Sample size: 394 
February 15, 2016  Donald Trump 41% 
Ted Cruz 11% 
John Kasich 11% 
Marco Rubio 10%, Ben Carson 7%, Jeb Bush 5%, Undecided 14% 
FOX 2 Detroit/ Mitchell Research^{[340]} Margin of error: ± 5.39% Sample size: 330 
February 4, 2016  Donald Trump 41% 
Marco Rubio 20% 
Ted Cruz 16% 
Ben Carson 9%, John Kasich 6%, Jeb Bush 2%, Chris Christie 2%, Someone Else 2%, Not Sure 7% 
TargetInsyght/ MIRS/IMP^{[341]} Margin of error: ± 5% Sample size: 400 
February 2–4, 2016  Donald Trump 35% 
Marco Rubio 21% 
Ted Cruz 21% 
John Kasich 6%, Ben Carson 5%, Jeb Bush 3%, Chris Christie 3%, Carly Fiorina 3%, Undecided 4% 
Mitchell Research^{[342]}
Margin of error: ± 4.41% Sample size: 493 
January 25, 2016  Donald Trump 51% 
Ted Cruz 15% 
Marco Rubio 12% 
Ben Carson 5%, Jeb Bush 5%, Chris Christie 5%, Someone else 3%, undecided 5% 
MRG^{[343]}
Margin of error: ± 4% Sample size: 600 
September 9–14, 2015  Ben Carson 24% 
Donald Trump 22% 
Jeb Bush 8% 
Mike Huckabee 6%, Marco Rubio 4%, Ted Cruz 3%, Carly Fiorina 3%, John Kasich 2%, Scott Walker 2%, Rand Paul 2%, Chris Christie 1%, Undecided 21% 
Mitchell Poll^{[344]}
Margin of error: ± 5% 
August 10, 2015  Donald Trump 20% 
Carly Fiorina 15% 
Ben Carson 12% 
Jeb Bush 12%, Marco Rubio 10%, Ted Cruz 8%, John Kasich 8%, Chris Christie 4%, Mike Huckabee 4%, Scott Walker 4%, Rand Paul 2% 
Public Policy Polling^{[345]}
Margin of error: ± 4.5% 
June 25–28, 2015  Scott Walker 15% 
Jeb Bush 14% 
Ben Carson 14% 
Donald Trump 14%, Marco Rubio 9%, Mike Huckabee 8%, Chris Christie 5%, Ted Cruz 5%, Rand Paul 4%, Carly Fiorina 3%, John Kasich 3%, Rick Santorum 2%, Lindsey Graham 1%, Rick Perry 1%, Bobby Jindal 0%, George Pataki 0%, Some else/Not sure 2% 
MIRS^{[346]}
Margin of error: ± 6.5% 
February 18–20, 2015  Scott Walker 43% 
Jeb Bush 19% 
Rand Paul 12% 
Ben Carson 10%, Chris Christie 3%, Marco Rubio 3%, Rick Santorum 3%, Mike Huckabee 3% 
Suffolk University^{[347]}
Margin of error: ± 7%

September 6–10, 2014  Jeb Bush 11.17% 
Mike Huckabee 11.17% 
Marco Rubio 9.57% 
Rand Paul 6.91%, Chris Christie 6.38%, Scott Walker 6.38%, Rick Perry 6.38%, Paul Ryan 5.85%, Ted Cruz 5.32%, Rick Santorum 5.32%, Bobby Jindal 2.66%, Jon Huntsman Jr. 2.13%, John Kasich 0.53%, Undecided 17.02%, Refused 2.13%, Other 1.06% 
Mitt Romney 39.47% 
Jeb Bush 9.87% 
Ted Cruz 6.58% 
Mike Huckabee 5.26%, Marco Rubio 5.26%, Scott Walker 4.61%, Chris Christie 2.63%, Bobby Jindal 2.63%, Paul Ryan 2.63%, Rick Perry 1.97%, Jon Huntsman Jr. 1.32%, Rick Santorum 1.32%, Rand Paul 1.32%, John Kasich 0%, Undecided 13.82%, Refused 1.32%  
Magellan Strategies^{[348]}
Margin of error: ± 6%

April 14–15, 2014  Mike Huckabee 24% 
Jeb Bush 16% 
Rand Paul 15% 
Chris Christie 14%, Ted Cruz 7%, Marco Rubio 5%, Scott Walker 4%, John Kasich 3%, Undecided 12% 
Public Policy Polling^{[349]}
Margin of error: ± 5.4%

April 3–6, 2014  Rand Paul 16% 
Chris Christie 15% 
Mike Huckabee 15% 
Ted Cruz 11%, Jeb Bush 9%, Paul Ryan 5%, Scott Walker 5%, Marco Rubio 4%, Bobby Jindal 3%, Someone Else/Undecided 17% 
Public Policy Polling^{[350]}
Margin of error: ± 4.6%

December 5–8, 2013  Rand Paul 18% 
Chris Christie 16% 
Ted Cruz 15% 
Jeb Bush 10%, Marco Rubio 8%, Paul Ryan 7%, Scott Walker 5%, Bobby Jindal 4%, Rick Santorum 2%, Someone Else/Undecided 14% 
Public Policy Polling^{[351]}
Margin of error: ± 5.4%

May 30 – June 2, 2013  Rand Paul 18% 
Jeb Bush 16% 
Chris Christie 15% 
Paul Ryan 12%, Marco Rubio 11%, Ted Cruz 7%, Rick Santorum 6%, Bobby Jindal 4%, Susana Martinez 0%, Someone Else/Undecided 10% 
Winner: Marco Rubio
Primary date: March 1, 2016
Poll source  Date  1st  2nd  3rd  Other 

Primary results^{[352]}  March 1, 2016  Marco Rubio 36.24% 
Ted Cruz 29.04% 
Donald Trump 21.42% 
Ben Carson 7.37%, John Kasich 5.75% 
Star Tribune/MasonDixon^{[353]}
Margin of error: ± 6.5%

January 18–20, 2016  Marco Rubio 23% 
Ted Cruz 21% 
Donald Trump 18% 
Ben Carson 11%, Jeb Bush 7%, Chris Christie 5%, Other 6%, Undecided 9% 
KSTP^{[354]}
Margin of error: ± 4.4%

October 29 – November 2, 2015  Donald Trump 26% 
Ben Carson 19%  Marco Rubio 16%  Jeb Bush 9%, Ted Cruz 4%, Carly Fiorina 4%, Rand Paul 3%, Mike Huckabee 2%, others 4%, undecided 13% 
Public Policy Polling^{[355]}
Margin of error: ± 5.2%

July 30 – August 2, 2015  Scott Walker 19% 
Donald Trump 18% 
Jeb Bush 15% 
Ben Carson 11%, Ted Cruz 7%, Mike Huckabee 6%, Rand Paul 5%, Marco Rubio 5%, Chris Christie 4%, Carly Fiorina 3%, John Kasich 3%, Bobby Jindal 1%, Rick Perry 0%, Rick Santorum 0%, Lindsey Graham 0%, George Pataki 0%, Jim Gilmore 0%, Undecided 1% 
Suffolk University^{[356]}
Margin of error: ± 10%

April 24–28, 2014  Jeb Bush 14.94% 
Rick Perry 14.94% 
Chris Christie 9.20% 
Ted Cruz 9.20%, Marco Rubio 8.05%, Rand Paul 5.75%, Ben Carson 4.60%, Rick Santorum 4.60%, Condoleezza Rice 3.45%, Scott Walker 3.45%, Bobby Jindal 2.30%, Sarah Palin 2.30%, Paul Ryan 2.30%, Mike Huckabee 1.15%, Undecided 13.79% 
Winner: Donald Trump
Primary date: March 8, 2016
Poll source  Date  1st  2nd  3rd  Other 

Primary results^{[357]}  March 8, 2016  Donald Trump 47.24% 
Ted Cruz 36.12% 
John Kasich 8.84% 
Marco Rubio 5.26%, Ben Carson 1.35%, Jeb Bush 0.41%, Mike Huckabee 0.26%, Rand Paul 0.15%, Rick Santorum 0.12%, Chris Christie 0.12%, Carly Fiorina 0.05%, Lindsey Graham 0.04%, George Pataki 0.03% 
Magellan Strategies^{[358]}
Margin of error: ± 3.1%

February 29, 2016  Donald Trump 41% 
Ted Cruz 17% 
Marco Rubio 16% 
John Kasich 8%, Ben Carson 5%, Undecided 13% 
Opinion Savvy/Insider Advantage^{[359]}
Margin of error: ± 4.6%

August 2, 2015  Donald Trump 26.9% 
Jeb Bush 20.4% 
Ben Carson 9.6% 
Ted Cruz 8.7%, Mike Huckabee 8.7%, Scott Walker 7%, Bobby Jindal 3.5%, Marco Rubio 3%, Chris Christie 2.9%, Rand Paul 2%, Carly Fiorina 1.8%, Rick Perry 1.3%, John Kasich 1.3%, Rick Santorum 0.4%, George Pataki 0.3%, Lindsey Graham 0%, Someone else 1.1%, Undecided 1.1% 
Public Policy Polling^{[360]}
Margin of error: ± 4.7%

July 10–13, 2014  Mike Huckabee 25% 
Jeb Bush 16% 
Ted Cruz 11% 
Chris Christie 8%, Rand Paul 6%, Paul Ryan 6%, Marco Rubio 5%, Rick Santorum 3%, Scott Walker 2%, Other/Undecided 16% 
Harper Polling^{[361]}
Margin of error: ± 4.1%

April 3–5, 2014  Jeb Bush 29% 
Chris Christie 12% 
Ted Cruz 12% 
Rand Paul 11%, Bobby Jindal 8%, Marco Rubio 5%, Scott Walker 5%, Rick Santorum 2%, Undecided 17% 
Harper Polling^{[362]}
Margin of error: ± 3.68%

December 17–18, 2013  Chris Christie 15.72% 
Ted Cruz 15.58% 
Rand Paul 14.45% 
Paul Ryan 11.61%, Marco Rubio 10.34%, Bobby Jindal 9.49%, Rick Santorum 3.97%, Scott Walker 1.7%, Not sure 17.14% 
Public Policy Polling^{[363]}
Margin of error: ±4.8%

November 15–17, 2013  Ted Cruz 19% 
Chris Christie 17% 
Jeb Bush 16% 
Rand Paul 12%, Bobby Jindal 8%, Marco Rubio 8%, Rick Santorum 5%, Paul Ryan 4%, Scott Walker 1%, Someone Else/Undecided 10% 
Winner: Donald Trump
Primary date: March 15, 2016
Poll source  Date  1st  2nd  3rd  Other 

Primary results^{[364]}  March 15, 2016  Donald Trump 40.84% 
Ted Cruz 40.63% 
John Kasich 10.10% 
Marco Rubio 6.09%, Ben Carson 0.88%, Jeb Bush 0.36%, Mike Huckabee 0.23%, Rand Paul 0.19%, Chris Christie 0.18%, Rick Santorum 0.08%, Carly Fiorina 0.07% 
Fort Hayes State University^{[365]}
Margin of error: ± 7%

March 3–10, 2016  Donald Trump 36% 
Ted Cruz 29% 
Marco Rubio 9% 
John Kasich 8%, Other 1%, Undecided 17% 
Remington Research Group^{[366]}
Margin of error: ± 2.6%

December 18–19, 2015  Donald Trump 33% 
Ted Cruz 23% 
Marco Rubio 12% 
Ben Carson 8%, Jeb Bush 3%, Chris Christie 3%, Carly Fiorina 2%, Rand Paul 1%, John Kasich 1%, Undecided 14% 
Public Policy Polling^{[367]}
Margin of error: 4.7%

August 7–8, 2015  Donald Trump 23% 
Ben Carson 11% 
Jeb Bush 11% 
Mike Huckabee 10%, Ted Cruz 9%, Scott Walker 8%, Carly Fiorina 7%, Marco Rubio 6%, John Kasich 4%, Rand Paul 4%, Chris Christie 1%, Bobby Jindal 1%, Rick Perry 1%, Rick Santorum 1%, George Pataki 0%, Lindsey Graham 0%, Jim Gilmore 0%, Someone else/Undecided 2% 
Poll source  Date  1st  2nd  3rd  Other 

Primary results^{[368]}  June 7, 2016  Donald Trump 73.72% 
Ted Cruz 9.36% 
John Kasich 6.85% 
Marco Rubio 3.30%, Jeb Bush 2.08% 
Gravis Marketing^{[369]}
Margin of error: ± 3%

February 24–25, 2015  Jeb Bush 19.8% 
Mike Huckabee 18.8% 
Scott Walker 18.8% 
Marco Rubio 8.9%, Chris Christie 5%, Ted Cruz 4%, Rand Paul 4%, Rick Perry 3%, Ben Carson 2%, Unsure 15.8% 
Public Policy Polling^{[370]}
Margin of error: ± 4.5%

November 15–17, 2013  Ted Cruz 20% 
Chris Christie 14% 
Rand Paul 14% 
Jeb Bush 11%, Paul Ryan 10%, Marco Rubio 8%, Rick Santorum 4%, Bobby Jindal 3%, Scott Walker 2%, Someone Else/Undecided 14% 
Public Policy Polling^{[371]}
Margin of error: ± 5.3%

June 21–23, 2013  Rand Paul 21% 
Jeb Bush 13% 
Chris Christie 12% 
Ted Cruz 12%, Marco Rubio 10%, Paul Ryan 9%, Bobby Jindal 6%, Susana Martinez 3%, Rick Santorum 1%, Someone Else/Undecided 13% 
Winner: Donald Trump
Primary date: May 10, 2016
Poll source  Date  1st  2nd  3rd  Other 

Primary results^{[372]}  May 10, 2016  Donald Trump 61.43% 
Ted Cruz 18.45% 
John Kasich 11.41% 
Ben Carson 5.08%, Marco Rubio 3.63% 
Harper Polling^{[373]}
Margin of error: ± 4%

February 3–4, 2014  Rand Paul 13.41% 
Paul Ryan 12.85% 
Chris Christie 12.66% 
Ted Cruz 12.66%, Marco Rubio 8.38%, Scott Walker 8.38%, Bobby Jindal 5.03%, Rick Santorum 4.66%, Undecided 21.97% 
Winner: Donald Trump
Caucus date: February 23, 2016
Poll source  Date  1st  2nd  3rd  Other 

Primary results^{[374]}  February 23, 2016  Donald Trump 45.75% 
Marco Rubio 23.77% 
Ted Cruz 21.30% 
Ben Carson 4.79%, John Kasich 3.59% 
CNN/ORC^{[375]}
Margin of error: ± 6.5%

February 10–15, 2016  Donald Trump 45% 
Marco Rubio 19% 
Ted Cruz 17% 
Ben Carson 7%, John Kasich 5%, Jeb Bush 1%, Someone else 2%, No opinion 4% 
Gravis Marketing^{[376]}
Margin of error: ± 5%

December 23–27, 2015  Donald Trump 33% 
Ted Cruz 20% 
Marco Rubio 11% 
Ben Carson 6%, Carly Fiorina 5%, Jeb Bush 5%, Chris Christie 5%, Rand Paul 1%, Rick Santorum 1%, John Kasich 0%, Mike Huckabee 0%, Unsure 12% 
Morning Consult^{[377]}
Margin of error: ± 4%

November 10–16, 2015  Donald Trump 38% 
Ben Carson 18% 
Marco Rubio 12% 
Ted Cruz 7%, Jeb Bush 6%, Carly Fiorina 2%, Mike Huckabee 2%, Rand Paul 2%, Chris Christie 1%, John Kasich 1%, Lindsey Graham 1%, Rick Santorum 0%, Someone else 1%, Don't know/No opinion 8% 
CNN/ORC^{[378]}
Margin of error: ± 6%

October 3–10, 2015  Donald Trump 38% 
Ben Carson 22% 
Carly Fiorina 8% 
Marco Rubio 7%, Jeb Bush 6%, Ted Cruz 4%, Mike Huckabee 4%, Rand Paul 2%, Jim Gilmore 1%, Chris Christie 1%, George Pataki 1%, John Kasich 1%, Lindsey Graham 0%, Bobby Jindal 0%, Rick Santorum 0%, None 3%, No opinion 3% 
Gravis Marketing^{[379]}
Margin of error: ± 4%

July 12–13, 2015  Donald Trump 28% 
Scott Walker 15% 
Ben Carson 8% 
Jeb Bush 7%, Marco Rubio 5%, Rand Paul 4%, Ted Cruz 4%, Rick Perry 3%, Bobby Jindal 2%, Mike Huckabee 2%, Chris Christie 2%, George Pataki 1%, Carly Fiorina 0%, Lindsey Graham 0%, Rick Santorum 0%, Undecided 20% 
Gravis Marketing^{[380]}
Margin of error: ± 5%

March 27, 2015  Ted Cruz 18% 
Scott Walker 18% 
Jeb Bush 16% 
Marco Rubio 7%, Ben Carson 6%, Rand Paul 5%, Chris Christie 4%, Mike Huckabee 4%, Rick Santorum 2%, Carly Fiorina 1%, Undecided 20% 
Gravis Marketing^{[381]}
Margin of error: ± 5%

February 21–22, 2015  Scott Walker 27% 
Jeb Bush 19% 
Chris Christie 8% 
Ted Cruz 6%, Mike Huckabee 6%, Rick Perry 6%, Marco Rubio 4%, Rick Santorum 4%, Rand Paul 3%, Bobby Jindal 1%, Undecided 16% 
Poll source  Date  1st  2nd  3rd  Other 

Primary results^{[382]}  June 7, 2016  Donald Trump 80.39% 
John Kasich 13.40% 
Ted Cruz 6.21% 

Monmouth University^{[383]}
Margin of error: ± 5.7%

May 1–3, 2016  Donald Trump 70% 
John Kasich 15% 
Ted Cruz 11% 
Undecided 5% 
RutgersEagleton^{[384]}
Margin of error: ± 6.9%

April 1–8, 2016  Donald Trump 52% 
John Kasich 24% 
Ted Cruz 18% 
Someone Else 4%, Don't Know 2% 
RutgersEagleton^{[385]}
Margin of error: ± 7.0%

February 6–15, 2016  Donald Trump 38% 
Marco Rubio 11% 
Ted Cruz 10% 
John Kasich 8%, Jeb Bush 7%, Chris Christie 7%, Ben Carson 5%, Carly Fiorina 2%, Someone Else 2%, Don't Know 11% 
RutgersEagleton^{[386]}
Margin of error: ± ?

November 30 – December 6, 2015  Donald Trump 30% 
Chris Christie 14% 
Marco Rubio 13% 
Ted Cruz 10%, Ben Carson 4%, Jeb Bush 2%, Carly Fiorina 2%, John Kasich 2%, Rand Paul 1%, Mike Huckabee 1%, Rick Santorum 1%, Lindsey Graham 0%, George Pataki 0%, Jim Gilmore 0%, Other 1%, Don't know 19% 
Fairleigh Dickinson University^{[387]}
Margin of error: ± 5.6%

November 9–15, 2015  Donald Trump 31% 
Marco Rubio 18% 
Ben Carson 11% 
Chris Christie 9%, Ted Cruz 6%, Jeb Bush 5%, Carly Fiorina 5%, John Kasich 2%, Rand Paul 2%, Mike Huckabee 2%, Rick Santorum 1%, Lindsey Graham 1%, George Pataki 0%, other 1%, Wouldn't vote 1%, Don't know/Refused 5% 
Quinnipiac University^{[388]}
Margin of error: ± 4.5%

November 4–8, 2015  Donald Trump 31% 
Ben Carson 16% 
Marco Rubio 15% 
Chris Christie 8%, Ted Cruz 7%, Carly Fiorina 4%, Jeb Bush 4%, John Kasich 3%, Bobby Jindal 1%, Rand Paul 1%, Rick Santorum 1%, Mike Huckabee 0%, Lindsey Graham 0%, Other 1%, Someone else 1%, Would not vote 2%, DK 6% 
RutgersEagleton^{[389]}
Margin of error: ± 6.8%

October 3–10, 2015  Donald Trump 32% 
Ben Carson 13% 
Marco Rubio 13% 
Ted Cruz 6%, Chris Christie 5%, Carly Fiorina 5%, Jeb Bush 5%, John Kasich 2%, Mike Huckabee 1%, George Pataki 1%, Rick Santorum <1%, Bobby Jindal <1%, Rand Paul <1%, Other 1%, Don't know 16% 
RutgersEagleton^{[390]}
Margin of error: ± 6.8%

July 25 – August 1, 2015  Donald Trump 21% 
Chris Christie 12% 
Jeb Bush 10% 
Scott Walker 10%, Ben Carson 5%, Marco Rubio 5%, Ted Cruz 4%, Rand Paul 2%, John Kasich 2%, Mike Huckabee 1%, Newt Gingrich 1%, Paul Ryan 1%, Carly Fiorina <1%, Lindsey Graham <1%, No one 3%, Other 2%, Don't know 19% 
Fairleigh Dickinson University^{[391]}
Margin of error: ± 6.3%

June 15–21, 2015  Jeb Bush 18% 
Chris Christie 18% 
Donald Trump 11% 
Scott Walker 9%, Ben Carson 6%, Marco Rubio 6%, Rand Paul 5%, Ted Cruz 3%, Carly Fiorina 3%, Mike Huckabee 3%, George Pataki 2%, Rick Perry 2%, Rick Santorum 2%, Lindsey Graham 1%, Bobby Jindal 0%, John Kasich 0%, other 2%, Wouldn't vote 2%, Don't know/Refused 10% 
Fairleigh Dickinson University^{[392]}
Margin of error: ± 6%

April 13–19, 2015  Chris Christie 20% 
Scott Walker 14% 
Jeb Bush 13% 
Ted Cruz 8%, Rand Paul 8%, Other 15%, Don't know 22% 
Quinnipiac University^{[393]}
Margin of error: ± 4.7%

April 9–14, 2015  Chris Christie 22% 
Scott Walker 14% 
Jeb Bush 11% 
Rand Paul 9%, Marco Rubio 7%, Ted Cruz 6%, Mike Huckabee 4%, Bobby Jindal 3%, Ben Carson 2%, Carly Fiorina 1% John Kasich 1%, Lindsey Graham 0%, Rick Perry 0%, Rick Santorum 0%, Other 3%, Wouldn't vote 4%, Don't know 13% 
Chris Christie 23% 
Scott Walker 15% 
Rand Paul 11% 
Marco Rubio 9%, Ted Cruz 6%, Mike Huckabee 4%, Bobby Jindal 3%, Ben Carson 2%, Carly Fiorina 1% John Kasich 1%, Rick Santorum 1%, Lindsey Graham 0%, Rick Perry 0%, Other 3%, Wouldn't vote 4%, Don't know 16%  
Chris Christie 23% 
Jeb Bush 12% 
Marco Rubio 11% 
Rand Paul 10%, Ted Cruz 8%, Mike Huckabee 4%, Bobby Jindal 3%, Ben Carson 3%, John Kasich 2%, Carly Fiorina 1% Rick Perry 1%, Lindsey Graham 0%, Rick Santorum 0%, Other 3%, Wouldn't vote 4%, Don't know 14%  
Quinnipiac University^{[394]}
Margin of error: ± ?

January 15–19, 2015  Chris Christie 24% 
Mitt Romney 18% 
Jeb Bush 13% 
Ben Carson 6%, Ted Cruz 6%, Rand Paul 5%, Mike Huckabee 4%, Scott Walker 4%, Marco Rubio 3%, Bobby Jindal 2%, Rick Perry 1%, John Kasich 0%, Rick Santorum 0%, Other 1%, Wouldn't vote 1%, Don't know 14% 
RutgersEagleton^{[395]}
Margin of error: ± ?

December 3–10, 2014  Chris Christie 32% 
Mitt Romney 10% 
Jeb Bush 6% 
Rand Paul 4%, Marco Rubio 4%, Ted Cruz 3%, Ben Carson 2%, Bobby Jindal 2%, Rudy Giuliani 1%, Ron Paul 1%, Rick Perry 1%, Scott Walker 1%, Other 3%, Don't know 31% 
RutgersEagleton^{[396]}
Margin of error: ± ?

July 28 – August 5, 2014  Chris Christie 41% 
Mitt Romney 6% 
Jeb Bush 5% 
Ted Cruz 3%, Rand Paul 2%, Scott Walker 2%, Mike Huckabee 1%, Ron Paul 1%, Rick Perry 1%, Marco Rubio 1%, Paul Ryan 1%, Newt Gingrich <1%, Rudy Giuliani <1%, Bobby Jindal <1%, Sarah Palin <1%, Other 3%, Don't know 30% 
Fairleigh Dickinson University^{[397]}
Margin of error: ± 6.5%

August 21–27, 2013  Chris Christie 51% 
Rand Paul 10% 
Marco Rubio 9% 
Jeb Bush 6%, Other 10%, Undecided 13% 
Kean University^{[398]}
Margin of error: ± ?%

April 25–29, 2013  Chris Christie 41% 
Marco Rubio 18% 
Rand Paul 13% 
Paul Ryan 12%, Other 5%, Undecided 11% 
Poll source  Date  1st  2nd  3rd  Other 

Primary results^{[382]}  June 7, 2016  Donald Trump 70.69% 
Ted Cruz 13.29% 
John Kasich 7.57% 
Ben Carson 3.65%, Jeb Bush 3.36%, Carly Fiorina 1.44% 
Albuquerque Journal^{[399]}
Margin of error: ± 4.9%

February 16–18, 2016  Ted Cruz 25% 
Donald Trump 24% 
Marco Rubio 19% 
Ben Carson 6%, Jeb Bush 5%, John Kasich 4%, Undecided 17% 
Winner: Donald Trump
Primary date: April 19, 2016
Poll source  Date  1st  2nd  3rd  Other 

Primary results^{[400]}  April 19, 2016  Donald Trump 59.21% 
John Kasich 24.68% 
Ted Cruz 14.53% 

Emerson College^{[401]}
Margin of error: ± 5.11%

April 15 – 17, 2016  Donald Trump 55% 
John Kasich 21% 
Ted Cruz 18% 
Undecided 5% 
CBS News/YouGov^{[402]}
Margin of error: ± 5.9%

April 13 – 15, 2016  Donald Trump 54% 
Ted Cruz 21% 
John Kasich 19% 
Undecided 6% 
Optimus^{[403]}
Margin of error: ± 0.822%

April 11 – 14, 2016  Donald Trump 49% 
John Kasich 23% 
Ted Cruz 14% 
Undecided 14% 
NBC News/WSJ/Marist^{[404]}
Margin of error: ± 5.5%

April 10 – 13, 2016  Donald Trump 54% 
John Kasich 25% 
Ted Cruz 16% 
Undecided 5% 
Siena College^{[405]}
Margin of error: ± 5%

April 6 – 11, 2016  Donald Trump 50% 
John Kasich 27% 
Ted Cruz 17% 
Other 6% 
Quinnipiac University^{[406]}
Margin of error: ± 4.2%

April 6 – 11, 2016  Donald Trump 55% 
John Kasich 20% 
Ted Cruz 19% 
Undecided 6% 
Public Policy Polling^{[407]}
Margin of error: ± 4.5%

April 7 – 10, 2016  Donald Trump 51% 
John Kasich 25% 
Ted Cruz 20% 
Undecided 4% 
NBC News/WSJ/Marist^{[408]}
Margin of error: ± 6.1%

April 6 – 10, 2016  Donald Trump 54% 
John Kasich 21% 
Ted Cruz 18% 
Undecided 5%, Other 1% 
Baruch College/New York 1^{[409]}
Margin of error: ± 5.8%

April 5 – 10, 2016  Donald Trump 60% 
John Kasich 17% 
Ted Cruz 14% 
Undecided 7%, Refused 2% 
Liberty Research^{[410]}
Margin of error: ± 3.0%

April 6 – 7, 2016  Donald Trump 52% 
John Kasich 23% 
Ted Cruz 19% 
Undecided 6% 
Emerson College^{[411]}
Margin of error: ± 5.4%

April 6 – 7, 2016  Donald Trump 56% 
Ted Cruz 22% 
John Kasich 17% 
Undecided 4%, Other 1% 
Fox News^{[412]}
Margin of error: ± 4%

April 4 – 7, 2016  Donald Trump 54% 
John Kasich 22% 
Ted Cruz 15% 
Undecided 6%, Other 1% 
Monmouth University^{[413]}
Margin of error: ± 5.6%

April 3 – 5, 2016  Donald Trump 52% 
John Kasich 25% 
Ted Cruz 17% 
Undecided 6% 
CBS News/YouGov^{[414]}
Margin of error: ± 5.6%

March 29April 1, 2016  Donald Trump 52% 
Ted Cruz 21% 
John Kasich 20% 
Other/Undecided 7% 
Quinnipiac University^{[415]}
Margin of error: ± 4.6%

March 22 – 29, 2016  Donald Trump 56% 
Ted Cruz 20% 
John Kasich 19% 
Undecided 4% 
Liberty Research^{[416]}
Margin of error: ± 3%

March 24 – 26, 2016  Donald Trump 55% 
John Kasich 22% 
Ted Cruz 19% 
Undecided 4% 
Optimus^{[417]}
Margin of error: ± 0.8%

March 22 – 24, 2016  Donald Trump 47% 
John Kasich 22% 
Ted Cruz 15% 
Undecided 16% 
Emerson College^{[418]}
Margin of error: ± 5.6%

March 14 – 16, 2016  Donald Trump 64% 
Ted Cruz 12% 
John Kasich 1% 
Other 19%, Undecided 1% 
Siena College^{[419]}
Margin of error: ± 6.7%

February 28 – March 3, 2016  Donald Trump 45% 
Marco Rubio 18% 
John Kasich 18% 
Ted Cruz 11%, Other 1%, Undecided 7% 
Siena College^{[420]}
Margin of error: ± 7.0%

January 31 – February 3, 2016  Donald Trump 34% 
Ted Cruz 16% 
Marco Rubio 16% 
Chris Christie 11%, Jeb Bush 7%, John Kasich 4%, Someone else 2%, Don't know/No opinion 10% 
Siena College^{[421]}
Margin of error: ± 6.7%

September 14–17, 2015  Donald Trump 34% 
Ben Carson 14% 
Jeb Bush 11% 
Chris Christie 9%, Carly Fiorina 8%, Marco Rubio 5%, John Kasich 4%, Ted Cruz 3%, George Pataki 3%, Scott Walker 0%, Other 1%, None of them 5%, Undecided 5% 
Quinnipiac University^{[422]}
Margin of error: ± 5.2%

May 28 – June 1, 2015  George Pataki 11% 
Marco Rubio 11% 
Jeb Bush 10% 
Scott Walker 7%, Ben Carson 6%, Chris Christie 6%, Rand Paul 6%, Donald Trump 6%, Mike Huckabee 5%, Ted Cruz 3%, Carly Fiorina 3%, Rick Santorum 2%, Bobby Jindal 1%, John Kasich 1%, Rick Perry 1%, Lindsey Graham 0%, DK/NA 14%, Wouldn't vote 3%, Someone else 1% 
Siena College^{[423]}
Margin of error: ± 6.6%

April 19–23, 2015  Chris Christie 25% 
Jeb Bush 20% 
Marco Rubio 9% 
Rand Paul 8%, Ted Cruz 6%, Other 8%, Undecided 24% 
Quinnipiac University^{[424]}
Margin of error: ± 5.4%

March 11–16, 2015  Jeb Bush 13% 
Scott Walker 13% 
Chris Christie 12% 
Marco Rubio 10%, Rand Paul 8%, Ben Carson 6%, George Pataki 6%, Ted Cruz 3%, Mike Huckabee 3%, Bobby Jindal 1%, John Kasich 1%, Rick Perry 1%, Rick Santorum 1%, Lindsey Graham 0%, Other 1%, Wouldn't vote 3%, Undecided 18% 
Marist College^{[425]}
Margin of error: ± 7.6%

November 18–20, 2013  Chris Christie 40% 
Rand Paul 10% 
Marco Rubio 10% 
Jeb Bush 8%, Paul Ryan 5%, Ted Cruz 3%, Rick Perry 3%, Scott Walker 3%, Susana Martinez 2%, Rick Santorum 2%, Undecided 15% 
Winner: Donald Trump
Primary date: March 15, 2016
Poll source  Date  1st  2nd  3rd  Other 

Primary results^{[426]}  March 15, 2016  Donald Trump 40.23% 
Ted Cruz 36.76% 
John Kasich 12.67% 
Marco Rubio 7.73%, Ben Carson 0.96%, Jeb Bush 0.34%, Mike Huckabee 0.27%, Rand Paul 0.24%, Chris Christie 0.11%, Carly Fiorina 0.08%, Rick Santorum 0.06%, Jim Gilmore 0.02% 
Public Policy Polling^{[427]}
Margin of error: ± 3.6% Sample size: 749 
March 11–13, 2016  Donald Trump 44% 
Ted Cruz 33% 
John Kasich 11% 
Marco Rubio 7%, Undecided 5% 
High Point University/SurveyUSA^{[428]}
Margin of error: ± 3.3% Sample size: 734 
March 9–10, 2016  Donald Trump 48% 
Ted Cruz 28% 
John Kasich 12% 
Marco Rubio 8%, Other 1%, No Preference 1%, Undecided 2% 
Civitas^{[429]}
Margin of error: ± 4.38% Sample size: 500 
March 5–7, 2016  Donald Trump 32% 
Ted Cruz 26% 
Marco Rubio 11% 
John Kasich 11%, Ben Carson 3%, Mike Huckabee 2%, Jeb Bush 2%, Rand Paul 1%, Other 1%, No Preference 6% 
WRALTV/SurveyUSA^{[430]}
Margin of error: ± 3.8% Sample size: 688 
March 4–7, 2016  Donald Trump 41% 
Ted Cruz 27% 
Marco Rubio 14% 
John Kasich 11%, Other 4%, Undecided 2% 
Elon University^{[431]}
Margin of error: ± 3.62% Sample size: 733 
February 15–19, 2016  Donald Trump 27.8% 
Ted Cruz 19.1% 
Marco Rubio 15.9% 
Ben Carson 10%, John Kasich 6.8%, Jeb Bush 4%, Other 1.1%, Undecided 14.6% 
SurveyUSA/ Time Warner Cable News^{[432]} Margin of error: ± 4.8% Sample size: 437 
February 14–16, 2016  Donald Trump 36% 
Ted Cruz 18% 
Marco Rubio 18% 
Ben Carson 10%, John Kasich 7%, Jeb Bush 5%, Other 1%, No Preference 1%, Undecided 4% 
Public Policy Polling^{[433]}
Margin of error: ± 4% Sample size: 597 
February 14–16, 2016  Donald Trump 29% 
Ted Cruz 19% 
Marco Rubio 16% 
John Kasich 11%, Ben Carson 9%, Jeb Bush 7%, Undecided 9% 
High Point University^{[434]}
Margin of error: ± 4.5% Sample size: 477 
January 30– February 4, 2016 
Donald Trump 26% 
Ted Cruz 22% 
Marco Rubio 20% 
Ben Carson 9%, Jeb Bush 3%, Chris Christie 2%, John Kasich 2%, Rand Paul 2%, Mike Huckabee 2%, Carly Fiorina 1%, Rick Santorum <1%, Jim Gilmore 0%, Other 4%, Don't Know 15% 
Civitas Institute^{[435]}
Margin of error: ± 4.38% Sample size: 500 
January 18–19, 2016  Donald Trump 27% 
Ted Cruz 23% 
Marco Rubio 10% 
Ben Carson 7%, Jeb Bush 4%, Chris Christie 4%, Mike Huckabee 2%, John Kasich 2%, Rand Paul 2%, Carly Fiorina 2%, Rick Santorum 1%, No Preference 11%, Other 2%, Refused 4% 
Public Policy Polling^{[436]}
Margin of error: ± 4.7% Sample size: 433 
January 18–19, 2016  Donald Trump 38% 
Ted Cruz 16% 
Marco Rubio 11% 
Ben Carson 8%, Jeb Bush 6%, Mike Huckabee 6%, Chris Christie 4%, Carly Fiorina 3%, Rand Paul 3%, John Kasich 2%, Rick Santorum 1%, Jim Gilmore 0%, Undecided 4% 
Public Policy Polling^{[437]}
Margin of error: ± 4.2%

December 5–7, 2015  Donald Trump 33% 
Ted Cruz 16% 
Marco Rubio/Ben Carson 14%  Jeb Bush 5%, Chris Christie 4%, John Kasich 3%, Carly Fiorina 2%, Mike Huckabee 2%, Rand Paul 2%, Lindsey Graham 1% 
Elon University^{[438]}
Margin of error: ± 3.0%

October 29 – November 2, 2015  Ben Carson 31% 
Donald Trump 19% 
Marco Rubio/Ted Cruz 9.7%  Jeb Bush 4.65%, Carly Fiorina 3.4%, Mike Huckabee 2.7%, Rand Paul 1.9%, Chris Christie 1.8%, John Kasich 1.3%, Lindsey Graham 1.1%, Bobby Jindal 0%, George Pataki 0%, Rick Santorum 0%, Undecided 12.2%, Refused 0.9%, Don't Know 0.7% 
Public Policy Polling^{[439]}
Margin of error ± 4.8%

October 23–25, 2015  Donald Trump 31% 
Ben Carson 23% 
Marco Rubio 11% 
Jeb Bush 6%, Ted Cruz 6%, Carly Fiorina 6%, Mike Huckabee 5%, John Kasich 5%, Chris Christie 3%, Rand Paul 2%, Rick Santorum 2%, Jim Gilmore 0%, Lindsey Graham 0%, Bobby Jindal 0%, George Pataki 0%, Undecided 1% 
Public Policy Polling^{[440]}
Margin of error: ± 4.1%

September 24–27, 2015  Donald Trump 26% 
Ben Carson 21% 
Carly Fiorina 12% 
Marco Rubio 10%, Ted Cruz 9%, Mike Huckabee 6%, Jeb Bush 5%, John Kasich 4%, Chris Christie 2%, Rick Santorum 1%, Bobby Jindal 1%, George Pataki 0%, Jim Gilmore 0%, Lindsey Graham 0%, Rand Paul 0%, Undecided 2% 
Elon University^{[441]}
Margin of error: ± 4.31%

September 17–21, 2015  Donald Trump 21.5% 
Ben Carson 20.9% 
Carly Fiorina 9.9% 
Marco Rubio 7.4%, Jeb Bush 7%, Ted Cruz 6.2%, Mike Huckabee 4.1%, Rand Paul 2.3%, John Kasich 2.1%, Scott Walker 1.6%, Chris Christie 1.6%, Rick Santorum 1%, Lindsey Graham, 0.2%, Bobby Jindal 0%, George Pataki 0%, Jim Gilmore 0%, Other 0.6%, Undecided 13.2%, Refused 0.6% 
Public Policy Polling^{[442]}
Margin of error: ± 4.5%

August 12–16, 2015  Donald Trump 24% 
Ben Carson 14% 
Jeb Bush 13% 
Ted Cruz 10%, Marco Rubio 9%, Carly Fiorina 6%, Mike Huckabee 6%, Scott Walker 6%, Rand Paul 3%, Chris Christie 2%, Rick Santorum 2%, Rick Perry 1%, John Kasich 1%, Bobby Jindal 0%, Lindsey Graham 0%, George Pataki 0%, Jim Gilmore 0%, Undecided 3% 
Opinion Savvy/Insider Advantage^{[443]}
Margin of error: ± 4.4%

August 2–3, 2015  Donald Trump 30.4% 
Jeb Bush 18.8% 
Ben Carson 11.9% 
Ted Cruz 6.1%, Marco Rubio 5.3%, Scott Walker 5.3%, Mike Huckabee 5.1%, Carly Fiorina 2.6%, John Kasich 2.2%, Rand Paul 2%, Chris Christie 1.8%, Bobby Jindal 1.4%, Rick Santorum 1%, Lindsey Graham 0.7%, Rick Perry 0.4%, George Pataki 0%, Someone else 1.1%, Undecided 3.9% 
Public Policy Polling^{[444]}
Margin of error: ± 5.8%

July 2–6, 2015  Donald Trump 16% 
Jeb Bush 12% 
Scott Walker 12% 
Mike Huckabee 11%, Ben Carson 9%, Marco Rubio 9%, Rand Paul 7%, Ted Cruz 6%, Chris Christie 5%, Carly Florina 4%, Rick Perry 2%, Lindsey Graham 1%, Bobby Jindal 1%, Rick Santorum 1%, John Kasich 0%, George Pataki 0%, Undecided 4% 
Public Policy Polling^{[445]}
Margin of error: ± 5.9%

May 28–31, 2015  Jeb Bush 19% 
Rand Paul 12% 
Marco Rubio 12% 
Scott Walker 12%, Ted Cruz 11%, Mike Huckabee 10%, Ben Carson 9%, Chris Christie 8%, Carly Fiorina 2%, Not Sure 5% 
SurveyUSA^{[446]}
Margin of error: ± 5.5%

April 22–27, 2015  Marco Rubio 16% 
Jeb Bush 15% 
Rand Paul 14% 
Scott Walker 12%, Mike Huckabee 11%, Ted Cruz 10%, Chris Christie 8%, Rick Perry 3%, Rick Santorum 2%, Other/Undecided 10% 
Public Policy Polling^{[447]}
Margin of error: ± 5.2%

April 2–5, 2015  Jeb Bush 19% 
Scott Walker 16% 
Ted Cruz 11% 
Mike Huckabee 11%, Marco Rubio 11%, Ben Carson 9%, Chris Christie 7%, Rand Paul 6%, Rick Perry 2%, Undecided 7% 
Civitas Institute^{[448]}
Margin of error: ± 5%

March 20–23, 2015  Scott Walker 29% 
Jeb Bush 16% 
Mike Huckabee 14% 
Ben Carson 13%, Rand Paul 8%, Chris Christie 7%, Rick Santorum 3%, Other/Undecided 10% 
Public Policy Polling^{[449]}
Margin of error: ± 5%

February 24–26, 2015  Scott Walker 24% 
Jeb Bush 17% 
Mike Huckabee 15% 
Ben Carson 12%, Marco Rubio 7%, Chris Christie 5%, Rand Paul 5%, Ted Cruz 3%, Rick Perry 3%, Undecided 8% 
Public Policy Polling^{[450]}
Margin of error: ± 4.9%

January 29–31, 2015  Mitt Romney 16% 
Jeb Bush 14% 
Ben Carson 14% 
Scott Walker 14%, Mike Huckabee 13%, Ted Cruz 6%, Rand Paul 6%, Chris Christie 5%, Rick Perry 3%, Undecided 9% 
Meeting Street Research^{[451]}
Margin of error: ± ?

January 21–22, 2015  Mitt Romney 18% 
Jeb Bush 17% 
Chris Christie 11% 
Ben Carson 10%, Mike Huckabee 10%, Rand Paul 6%, Ted Cruz 5%, Scott Walker 4%, Rick Perry 3%, Mike Pence 0%, Undecided 15%, Refused 1% 
Public Policy Polling^{[452]}
Margin of error: ± 5%

December 4–7, 2014  Ben Carson 19% 
Jeb Bush 15% 
Chris Christie 14% 
Mike Huckabee 14%, Paul Ryan 11%, Rick Perry 7%, Ted Cruz 5%, Rand Paul 5%, Marco Rubio 4%, Someone else/Not sure 7% 
Suffolk University^{[453]}
Margin of error: ± 8%

August 16–19, 2014  Mike Huckabee 17.5% 
Jeb Bush 11% 
Chris Christie 7% 
Rick Perry 5.5%, Paul Ryan 5.5%, Marco Rubio 4%, Rand Paul 3.5%, Scott Walker 3.5%, Ted Cruz 3%, Bobby Jindal 1.5%, John Kasich 0.5%, Jon Huntsman Jr. 0%, Rick Santorum 0%, Undecided 32%, Refused 3.5%, Other 2% 
Mitt Romney 38.76% 
Mike Huckabee 13.95% 
Jeb Bush 10.08% 
Chris Christie 6.2%, Scott Walker 3.88%, Rand Paul 3.1%, Rick Perry 2.33%, Marco Rubio 2.33%, Paul Ryan 2.33%, Ted Cruz 1.55%, Jon Huntsman Jr. 0.78%, Bobby Jindal 0%, John Kasich 0%, Rick Santorum 0%, Undecided 11.63%, Refused 3.1%  
Civitas Institute^{[454]}
Margin of error: ± 5.3%

July 28–29, 2014  Jeb Bush 16% 
Chris Christie 9% 
Rand Paul 9% 
Marco Rubio 8%, Ted Cruz 7%, Rick Perry 7%, Bobby Jindal 3%, Rick Santorum 3%, Scott Walker 3%, Undecided 22%, Won't vote in Republican primary 11%, Other 1%, Refused 1% 
Public Policy Polling^{[455]}
Margin of error: ± 4.9%

May 9–11, 2014  Jeb Bush 17% 
Mike Huckabee 17% 
Chris Christie 12% 
Ted Cruz 12%, Rand Paul 12%, Paul Ryan 8%, Marco Rubio 5%, Scott Walker 5%, Bobby Jindal 2%, Someone else/Not sure 11% 
Public Policy Polling^{[456]}
Margin of error: ± 3.7%

April 26–28, 2014  Mike Huckabee 19% 
Ted Cruz 17% 
Jeb Bush 15% 
Rand Paul 15%, Chris Christie 9%, Paul Ryan 6%, Marco Rubio 5%, Bobby Jindal 4%, Cliven Bundy 3%, Someone Else/Undecided 6% 
Magellan Strategies^{[457]}
Margin of error: ± 6%

April 14–15, 2014  Mike Huckabee 21% 
Jeb Bush 19% 
Rand Paul 15% 
Chris Christie 12%, Ted Cruz 11%, Marco Rubio 6%, John Kasich 3%, Scott Walker 2%, Undecided 11% 
Public Policy Polling^{[458]}
Margin of error: ± 5.5%

April 3–6, 2014  Mike Huckabee 22% 
Jeb Bush 18% 
Chris Christie 12% 
Ted Cruz 12%, Rand Paul 9%, Paul Ryan 9%, Scott Walker 7%, Marco Rubio 5%, Bobby Jindal 2% Someone Else/Undecided 6% 
Public Policy Polling^{[459]}
Margin of error: ± 5%

March 6–9, 2014  Mike Huckabee 19% 
Chris Christie 15% 
Ted Cruz 14% 
Jeb Bush 12%, Rand Paul 12%, Scott Walker 6%, Marco Rubio 5%, Paul Ryan 4%, Bobby Jindal 1%, Someone Else/Undecided 12% 
Public Policy Polling^{[460]}
Margin of error: ± 5.6%

February 6–9, 2014  Mike Huckabee 20% 
Jeb Bush 15% 
Rand Paul 14% 
Chris Christie 11%, Ted Cruz 8%, Paul Ryan 8%, Marco Rubio 7%, Scott Walker 4%, Bobby Jindal 3%, Someone Else/Undecided 9% 
Public Policy Polling^{[461]}
Margin of error: ± 4.1%

January 9–12, 2014  Chris Christie 17% 
Jeb Bush 14% 
Rand Paul 14% 
Ted Cruz 11%, Paul Ryan 11%, Marco Rubio 9%, Bobby Jindal 5%, Rick Santorum 4%, Scott Walker 3%, Someone Else/Undecided 13% 
Public Policy Polling^{[462]}
Margin of error: ± 4.3%

December 5–8, 2013  Chris Christie 19% 
Jeb Bush 15% 
Rand Paul 13% 
Ted Cruz 12%, Marco Rubio 10%, Paul Ryan 7%, Rick Santorum 5%, Scott Walker 5%, Bobby Jindal 3%, Someone Else/Undecided 11% 
Public Policy Polling^{[463]}
Margin of error: ± 4.4%

November 8–11, 2013  Chris Christie 20% 
Jeb Bush 16% 
Ted Cruz 12% 
Rand Paul 12%, Marco Rubio 10%, Paul Ryan 7%, Bobby Jindal 6%, Rick Santorum 2%, Scott Walker 1%, Someone Else/Undecided 13% 
Winner: John Kasich
Primary date: March 15, 2016
Poll source  Date  1st  2nd  3rd  Other 

Primary results^{[464]}  March 15, 2016  John Kasich 46.95% 
Donald Trump 35.87% 
Ted Cruz 13.31% 
Marco Rubio 2.34%, Ben Carson 0.72%, Jeb Bush 0.27%, Mike Huckabee 0.25%, Chris Christie 0.12%, Carly Fiorina 0.11%, Rick Santorum 0.07% 
ARG^{[465]}
Margin of error: ± 5% Sample size: 400 
March 12–13, 2016  John Kasich 44% 
Donald Trump 38% 
Ted Cruz 12% 
Marco Rubio 2%, Undecided 4% 
Monmouth University^{[466]}
Margin of error: ± 4.4% Sample size: 503 
March 11–13, 2016  John Kasich 40% 
Donald Trump 35% 
Ted Cruz 15% 
Marco Rubio 5%, Other 1%, Undecided 4% 
Quinnipiac University^{[76]}
Margin of error: ± 3.7% Sample size: 721 
March 8–13, 2016  Donald Trump 38% 
John Kasich 38% 
Ted Cruz 16% 
Marco Rubio 3%, Undecided 4% 
CBS News/YouGov^{[467]}
Margin of error: ± 4.4% Sample size: 798 
March 9–11, 2016  John Kasich 33% 
Donald Trump 33% 
Ted Cruz 27% 
Marco Rubio 5%, No Preference 2% 
NBC News/WSJ/Marist^{[468]}
Margin of error: ± 4.1% Sample size: 564 
March 4–10, 2016  John Kasich 39% 
Donald Trump 33% 
Ted Cruz 19% 
Marco Rubio 6% 
Fox News^{[469]}
Margin of error: ± 3.5% Sample size: 806 
March 5–8, 2016  John Kasich 34% 
Donald Trump 29% 
Ted Cruz 19% 
Marco Rubio 7%, Undecided 5%, Other 3%, None of the above 2% 
Quinnipiac University^{[87]}
Margin of error: ± 3.7% Sample size: 685 
March 2–7, 2016  Donald Trump 38% 
John Kasich 32% 
Ted Cruz 16% 
Marco Rubio 9%, Undecided 5% 
Public Policy Polling^{[470]}
Margin of error: ± 3.9%

March 4–6, 2016  Donald Trump 38% 
John Kasich 35% 
Ted Cruz 15% 
Marco Rubio 5%, Undecided 5% 
CNN/ORC^{[90]}
Margin of error: ± 5% Sample size: 359 
March 2–6, 2016  Donald Trump 41% 
John Kasich 35% 
Ted Cruz 15% 
Marco Rubio 7% 
Quinnipiac University^{[471]}
Margin of error: ± 3.6%

February 16–20, 2016  Donald Trump 31% 
John Kasich 26% 
Ted Cruz 21% 
Marco Rubio 13%, Ben Carson 5%, Someone else 0%, DK/NA 5% 
Baldwin Wallace University^{[472]}
Margin of error: ± 5%

February 11–20, 2016  Donald Trump 31% 
John Kasich 29% 
Ted Cruz 11% 
Marco Rubio 10%, Ben Carson 8%, Jeb Bush 3%, Don't Know 8% 
Quinnipiac University^{[473]}
Margin of error: ± 4.7%

September 25 – October 5, 2015  Donald Trump 23% 
Ben Carson 18% 
John Kasich 13% 
Ted Cruz 11%, Carly Fiorina 10%, Marco Rubio 7%, Jeb Bush 4%, Rand Paul 3%, Mike Huckabee 2%, Chris Christie 1%, Jim Gilmore 0%, George Pataki 0%, Bobby Jindal 0%, Rick Santorum 0%, Lindsey Graham 0%, Someone else 0%, Would not vote 2%, DK/NA 6% 
Quinnipiac University^{[474]}
Margin of error: ± 5.1%

August 7–18, 2015  John Kasich 27% 
Donald Trump 21% 
Ted Cruz 7% 
Marco Rubio 7%, Ben Carson 6%, Carly Fiorina 5%, Jeb Bush 5%, Mike Huckabee 3%, Scott Walker 2%, Rick Santorum 2%, Rand Paul 2%, Chris Christie 1%, Bobby Jindal 0%, Rick Perry 0%, Lindsey Graham 0%, Don't know 11% 
Quinnipiac University^{[475]}
Margin of error: ± 4.8%

June 4–15, 2015  John Kasich 19% 
Jeb Bush 9% 
Scott Walker 8% 
Marco Rubio 7%, Rand Paul 7%, Mike Huckabee 7%, Ben Carson 6%, Ted Cruz 6%, Chris Christie 3%, Lindsey Graham 2%, Rick Perry 2%, Rick Santorum 2%, Carly Fiorina 1%, Donald Trump 1%, Bobby Jindal 0%, Someone else 1%, Wouldn't vote 1%, Don't know 17% 
Public Policy Polling^{[476]}
Margin of error: ± 4.8%

June 4–7, 2015  John Kasich 19% 
Ben Carson 13% 
Scott Walker 13% 
Jeb Bush 12%, Marco Rubio 12%, Rand Paul 9%, Mike Huckabee 6%, Ted Cruz 5%, Chris Christie 4%, Someone Else/Not Sure 8% 
Quinnipiac University^{[123]}
Margin of error: ± 4.9%

March 17–28, 2015  John Kasich 20% 
Ted Cruz 9% 
Mike Huckbee 9% 
Scott Walker 9%, Jeb Bush 8%, Ben Carson 8%, Rand Paul 7%, Chris Christie 5%, Marco Rubio 5%, Bobby Jindal 1%, Rick Perry 1%, Rick Santorum 1%, Lindsey Graham 0%, Someone else 1%, Wouldn't vote 1% Undecided 15% 
John Kasich 22% 
Scott Walker 10% 
Ted Cruz 9% 
Mike Huckabee 9%, Ben Carson 8%, Rand Paul 7%, Chris Christie 6%, Marco Rubio 6%, Rick Perry 2%, Bobby Jindal 1%, Rick Santorum 1%, Lindsey Graham 0%, Someone else 1%, Wouldn't vote 1% Undecided 17%  
John Kasich 22% 
Ted Cruz 11% 
Jeb Bush 9% 
Ben Carson 9%, Mike Huckabee 9%, Rand Paul 7%, Marco Rubio 6%, Chris Christie 5%, Bobby Jindal 2%, Rick Perry 1%, Rick Santorum 1%, Lindsey Graham 0%, Someone else 1%, Wouldn't vote 1% Undecided 15%  
Quinnipiac University^{[126]}
Margin of error: ± 5.3%

January 22 – February 1, 2015  Mitt Romney 15% 
John Kasich 11% 
Scott Walker 10% 
Jeb Bush 9%, Rand Paul 8%, Ben Carson 7%, Ted Cruz 5%, Mike Huckabee 5%, Chris Christie 4%, Marco Rubio 3%, Bobby Jindal 1%, Rick Perry 0%, Rick Santorum 0%, Other 2%, Wouldn't vote 2%, Undecided 18% 
John Kasich 14% 
Scott Walker 11% 
Jeb Bush 10% 
Rand Paul 10%, Ben Carson 8%, Mike Huckabee 7%, Ted Cruz 6%, Chris Christie 6%, Marco Rubio 4%, Bobby Jindal 1%, Rick Perry 1%, Rick Santorum 1%, Other 2%, Wouldn't vote 2%, Undecided 20%  
Magellan Strategies^{[477]}
Margin of error: ± 6%

April 14–15, 2014  Mike Huckabee 17% 
Rand Paul 15% 
Jeb Bush 13% 
Chris Christie 13%, Ted Cruz 12%, John Kasich 10%, Marco Rubio 5%, Scott Walker 4%, Undecided 11% 
Public Policy Polling^{[478]}
Margin of error: ± 5.2%

Aug. 16–19, 2013  Chris Christie 17% 
Rand Paul 17% 
Jeb Bush 10% 
Marco Rubio 9%, John Kasich 8%, Paul Ryan 8%, Ted Cruz 6%, Bobby Jindal 4%, Rick Santorum 4%, Someone Else/Undecided 17% 
Winner: Ted Cruz
Primary date: March 1, 2016
Poll source  Date  1st  2nd  3rd  Other 

Primary results^{[479]}  March 1, 2016  Ted Cruz 34.37% 
Donald Trump 28.32% 
Marco Rubio 26.01% 
Ben Carson 6.22%, John Kasich 3.59%, Jeb Bush 0.45%, Rand Paul 0.36%, Mike Huckabee 0.28%, Carly Fiorina 0.13%, Chris Christie 0.12%, Rick Santorum 0.08%, Lindsey Graham 0.05% 
SurveyMonkey^{[2]}
Margin of error: ± ?% Sample size: 636 
February 22–29, 2016  Donald Trump 34% 
Ted Cruz 19% 
Marco Rubio 19% 
Ben Carson 14%, John Kasich 7%, Undecided 8% 
Monmouth University^{[3]}
Margin of error: ± 4.9%

February 25–28, 2016  Donald Trump 35% 
Ted Cruz 23% 
Marco Rubio 22% 
John Kasich 8%, Ben Carson 7%, Other 1%, Undecided 4% 
SoonerPoll^{[480]}
Margin of error: ± 4.21%

February 23–25, 2016  Donald Trump 34% 
Marco Rubio 21% 
Ted Cruz 18% 
Ben Carson 9%, John Kasich 6%, Undecided 13% 
The Oklahoman^{[481]}
Margin of error: ± 4.9%

February 22–23, 2016  Donald Trump 29% 
Marco Rubio 21% 
Ted Cruz 20% 
Ben Carson 6%, John Kasich 5%, Other 2%, Undecided 18% 
SoonerPoll^{[482]}
Margin of error: ± 4.81%

February 6–9, 2016  Donald Trump 30.4% 
Ted Cruz 25.4% 
Marco Rubio 21.0% 
Ben Carson 5.6%, Jeb Bush 4.6%, John Kasich 2.9%, Carly Fiorina 1.5%, Chris Christie 1.4%, Jim Gilmore 0.0%, Undecided 7.7% 
SoonerPoll^{[483]}
Margin of error: ± 4.21% Sample size: 541 
January 17–19, 2016  Donald Trump 35.1% 
Ted Cruz 25% 
Marco Rubio 9.6% 
Ben Carson 7.8%, Jeb Bush 4.4%, Mike Huckabee 4.4%, Chris Christie 3.1%, Rand Paul 2.2%, Carly Fiorina 1.3%, Other 2.2%, Undecided 4.8% 
SoonerPoll^{[484]}
Margin of error: ± 5.1%

November 12–15, 2015  Donald Trump 27.1% 
Ted Cruz 18.3% 
Ben Carson 17.5% 
Marco Rubio 16.3%, Mike Huckabee 4.3%, Carly Fiorina 2.3%, Jeb Bush 2.2%, Rand Paul 2.2%, John Kasich 0.5%, Other 2.5%, Undecided 6.7% 
The Oklahoman^{[485]}
Margin of error: ± 4.3%

October 19–22, 2015  Ben Carson 25% 
Donald Trump 19% 
Marco Rubio 9% 
Ted Cruz 7%, Mike Huckabee 4%, Jeb Bush 3%, Carly Fiorina 2%, John Kasich 2%, Chris Christie 1%, Rand Paul 1%, Bobby Jindal 0%, Rick Santorum 0%, Lindsey Graham 0%, George Pataki 0%, Undecided 27% 
Opinion Savvy/Insider Advantage^{[486]}
Margin of error: ± 4.8%

August 2, 2015  Donald Trump 35.8% 
Jeb Bush 13.6% 
Ben Carson 10.1% 
Ted Cruz 7.3%, Mike Huckabee 6.8%, Scott Walker 5.8%, Rand Paul 3.4%, Chris Christie 3.3%, Carly Fiorina 3%, Marco Rubio 2.6%, John Kasich 2.3%, Rick Perry 1.6%, Bobby Jindal 1.2%, Rick Santorum 1.1%, Lindsey Graham 0.4%, George Pataki 0%, Someone else 0.7%, Undecided 1.1% 
Harper Polling^{[487]}
Margin of error: ± 3.91%

Jan. 30 – Feb 1, 2014  Ted Cruz 19% 
Rand Paul 15% 
Chris Christie 11% 
Paul Ryan 11%, Marco Rubio 9%, Bobby Jindal 6%, Rick Santorum 5%, Scott Walker 4%, Undecided 19% 
Winner: Donald Trump
Primary date: May 17, 2016
Poll source  Date  1st  2nd  3rd  Other 

Primary results^{[488]}  May 17, 2016  Donald Trump 64.51% 
Ted Cruz 16.50% 
John Kasich 15.83% 

DHM Research/Oregon Public Broadcasting/Fox 12^{[489]}
Margin of error: ± 5.7%

May 6–9, 2016  Donald Trump 45%  Ted Cruz 14% 
John Kasich 14% 
Undecided 19%, Wouldn't Vote 7% 
Hoffman Research^{[490]}
Margin of error: ± 4.16%

April 26–27, 2016  Donald Trump 43%  Ted Cruz 26% 
John Kasich 17% 
Undecided 13% 
DHM Research^{[491]}
Margin of error: ± 7.7%

July 22–27, 2015  Donald Trump 18% 
Scott Walker 12%  Jeb Bush 11%  Ted Cruz 10%, Ben Carson 9%, Rand Paul 6%, Mike Huckabee 6%, John Kasich 4%, Marco Rubio 3%, Chris Christie 2%, Carly Fiorina 2%, Rick Santorum 2%, Bobby Jindal 1%, Rick Perry 1%, Lindsey Graham 0%, Jim Gilmore 0%, George Pataki 0%, Other 2%, DK 12% 
Public Policy Polling^{[492]}
Margin of error: ± 5.1%

May 22–27, 2014  Mike Huckabee 21% 
Ted Cruz 16% 
Jeb Bush 15% 
Rand Paul 15%, Chris Christie 12%, Marco Rubio 4%, Paul Ryan 3%, Scott Walker 3%, Rick Santorum 2%, Someone else/Not sure 10% 
Winner: Donald Trump
Primary date: April 26, 2016
Poll source  Date  1st  2nd  3rd  Other 

Primary results^{[493]}  April 26, 2016  Donald Trump 56.71% 
Ted Cruz 21.66% 
John Kasich 19.36% 
Ben Carson 0.93%, Marco Rubio 0.75%, Jeb Bush 0.60% 
Fox 29/Opinion Savvy^{[494]}
Margin of error: ± 3%

April 22–24, 2016  Donald Trump 48%  Ted Cruz 28% 
John Kasich 19% 
Undecided 5% 
Public Policy Polling^{[62]}
Margin of error: ± 3.4%

April 22–24, 2016  Donald Trump 51%  Ted Cruz 25% 
John Kasich 22% 
Undecided 3% 
ARG^{[495]}
Margin of error: ± 5

April 21–24, 2016  Donald Trump 50%  Ted Cruz 23% 
John Kasich 21% 
Undecided 6% 
CBS News/YouGov^{[496]}
Margin of error: ± 4.6%

April 20–22, 2016  Donald Trump 49%  Ted Cruz 26% 
John Kasich 22% 
Undecided 3% 
NBC News/Wall Street Journal/Marist College^{[497]}
Margin of error: ± 4.1%

April 18–20, 2016  Donald Trump 45%  Ted Cruz 27% 
John Kasich 24% 
Other 3%, Undecided 3% 
Franklin & Marshall College^{[498]}
Margin of error: ± 4.0%

April 11–18, 2016  Donald Trump 40%  Ted Cruz 26% 
John Kasich 24% 
Undecided 10% 
CBS News/YouGov^{[499]}
Margin of error: ± 4.8%

April 13–15, 2016  Donald Trump 46%  Ted Cruz 26% 
John Kasich 23% 
Undecided 4% 
Monmouth University^{[500]}
Margin of error: ± 5.6%

April 10–12, 2016  Donald Trump 44% 
Ted Cruz 28% 
John Kasich 23% 
Undecided 6% 
Morning Call/Muhlenberg College^{[501]}
Margin of error: ± 5.5%

April 7–12, 2016  Donald Trump 41% 
John Kasich 26% 
Ted Cruz 23% 
Other 3%, Undecided 8% 
Fox News^{[502]}
Margin of error: ± 3.5%

April 4–7, 2016  Donald Trump 48% 
John Kasich 22% 
Ted Cruz 20% 
Other 1%, Not Sure 8% 
Muhlenberg College^{[503]}
Margin of error: ± 6%

April 1–6, 2016  Donald Trump 35% 
Ted Cruz 28% 
John Kasich 27% 
Other/Neither 5%, Not Sure 5% 
Quinnipiac University^{[504]}
Margin of error: ± 4.1%

March 30April 4, 2016  Donald Trump 39% 
Ted Cruz 30% 
John Kasich 24% 
Undecided 7% 
CBS News/YouGov^{[414]}
Margin of error: ± 5.0%

March 29April 1, 2016  Donald Trump 47% 
Ted Cruz 29% 
John Kasich 22% 
Other/Undecided 2% 
Franklin & Marshall College^{[505]} Margin of error: ± 5.4%

March 14–20, 2016  Donald Trump 33% 
John Kasich 30% 
Ted Cruz 20% 
Undecided 17% 
Harper Polling^{[506]}
Margin of error: ± 5.22%

March 1–2, 2016  Donald Trump 36% 
Marco Rubio 19% 
Ted Cruz 17% 
Ben Carson 11%, John Kasich 10%, Undecided 8% 
Franklin & Marshall College^{[507]} Margin of error: ± ?%

February 13–21, 2016  Donald Trump 22% 
Marco Rubio 16% 
John Kasich 15% 
Ted Cruz 12%, Ben Carson 6%, Jeb Bush 4%, Don't know 25% 
Robert Morris University^{[508]}
Margin of error: ± ?%

February 11–16, 2016  Donald Trump 41% 
Marco Rubio 15% 
Ted Cruz 15% 
John Kasich 9%, Ben Carson 8%, Jeb Bush 4%, Undecided 9% 
Franklin & Marshall College^{[509]} Margin of error: ± ?%

January 18–23, 2016  Donald Trump 24% 
Ted Cruz 14% 
Marco Rubio 11% 
Ben Carson 5%, Jeb Bush 5%, Chris Christie 5%, John Kasich 3%, Carly Fiorina 2%, Mike Huckabee 2%, Rand Paul 2%, Rick Santorum 1%, Don't know 26% 
Franklin & Marshall College^{[510]} Margin of error: ± ?%

October 19–25, 2015  Donald Trump 23% 
Ben Carson 22% 
Marco Rubio 13% 
John Kasich 6%, Ted Cruz 4%, Chris Christie 3%, Jeb Bush 3%, Carly Fiorina 3%, Mike Huckabee 1%, Bobby Jindal 1%, Rand Paul 1%, Rick Santorum 1%, Lindsey Graham <0%, George Pataki <0%, Don't know 20% 
Public Policy Polling^{[511]}
Margin of error: ± 4.5%

October 8–11, 2015  Donald Trump 24% 
Ben Carson 23% 
Ted Cruz 9% 
Carly Fiorina 9%, Chris Christie 7%, Jeb Bush 7%, Marco Rubio 6%, Mike Huckabee 3%, John Kasich 3%, Rick Santorum 2%, Jim Gilmore 1%, Rand Paul 1%, George Pataki 1%, Bobby Jindal 0%, Lindsey Graham 0%, Undecided 4% 
Quinnipiac University^{[512]}
Margin of error: ± 4.7%

September 25 – October 5, 2015  Donald Trump 23% 
Ben Carson 17% 
Marco Rubio 12% 
Carly Fiorina 8%, Ted Cruz 6%, Chris Christie 5%, Jeb Bush 4%, Mike Huckabee 4%, John Kasich 3%, Rick Santorum 2%, Rand Paul 1%, Bobby Jindal 1%, George Pataki 1%, Lindsey Graham 0%, Jim Gilmore 0%, Would not vote 1%, Someone else 0%, DK/NA 12% 
Mercyhurst^{[513]}
Margin of error: ± 4.5%

September 21 – October 1, 2015  Donald Trump 18% 
Ben Carson 18% 
Jeb Bush 9% 
Carly Fiorina 8%, Ted Cruz 4%, Marco Rubio 4%, Chris Christie 4%, Rand Paul 3%, Rick Santorum 3%, John Kasich 3%, Mike Huckabee 3%, Others 2%, Undecided 17%, Refused 1% 
Quinnipiac University^{[514]}
Margin of error: ± 4.7%

August 7–18, 2015  Donald Trump 24% 
Ben Carson 13% 
Marco Rubio 10% 
Carly Fiorina 7%, Jeb Bush 6%, Ted Cruz 5%, Scott Walker 5%, Rand Paul 5%, Rick Santorum 4%, John Kasich 3%, Mike Huckabee 2%, Chris Christie 2%, Bobby Jindal 1%, Rick Perry 0%, Lindsey Graham 0%, Someone else 1%, Wouldn't vote 2%, Don't know 9% 
Quinnipiac University^{[515]}
Margin of error: ± 4.8%

June 4–15, 2015  Marco Rubio 12% 
Rand Paul 11% 
Jeb Bush 10% 
Ben Carson 10%, Scott Walker 9%, Rick Santorum 7%, Chris Christie 6%, Mike Huckabee 6%, Ted Cruz 5%, Donald Trump 4%, Carly Fiorina 1%, Lindsey Graham 1%, John Kasich 1%, Rick Perry 1%, Bobby Jindal 0%, Someone else 2%, Wouldn't vote 1%, Don't know 13% 
Public Policy Polling^{[516]}
Margin of error: ± 5.4%

May 21–24, 2015  Scott Walker 17% 
Ben Carson 12% 
Chris Christie 12% 
Rick Santorum 12%, Mike Huckabee 11%, Jeb Bush 9%, Marco Rubio 9%, Ted Cruz 6%, Rand Paul 6%, Someone else/Not sure 6% 
Quinnipiac University^{[123]}
Margin of error: ± 4.7%

March 17–28, 2015  Scott Walker 14% 
Jeb Bush 9% 
Ben Carson 9% 
Rick Santorum 9%, Ted Cruz 7%, Marco Rubio 7%, Mike Huckabee 6%, Rand Paul 6%, Chris Christie 5%, Rick Perry 3%, John Kasich 2%, Bobby Jindal 1%, Lindsey Graham 0% Someone else 0%, Wouldn't vote 4% Undecided 18% 
Scott Walker 14% 
Ben Carson 9% 
Rick Santorum 9%  Ted Cruz 8%, Rand Paul 8%, Marco Rubio 8%, Chris Christie 6%, Mike Huckabee 6%, Rick Perry 3%, Bobby Jindal 2%, John Kasich 2%, Lindsey Graham 1%, Someone else 0%, Wouldn't vote 4%, Undecided 20%  
Ben Carson 11% 
Jeb Bush 10% 
Ted Cruz 10% 
Marco Rubio 9%, Scott Walker 9%, Mike Huckabee 7%, Rand Paul 7%, Chris Christie 5%, Rick Perry 3%, Bobby Jindal 2%, John Kasich 2%, Lindsey Graham 1%, Someone else 2%, Wouldn't vote 4%, Undecided 19%  
Quinnipiac University^{[126]}
Margin of error: ± 5.3%

January 22 – February 1, 2015  Mitt Romney 12% 
Jeb Bush 10% 
Chris Christie 10% 
Mike Huckabee 9%, Ben Carson 8%, Rick Santorum 6%, Scott Walker 5%, Ted Cruz 4%, Rand Paul 3%, Marco Rubio 3%, Bobby Jindal 2%, John Kasich 2%, Rick Perry 1%, Other 2%, Wouldn't vote 2%, Undecided 21% 
Jeb Bush 12% 
Chris Christie 11% 
Mike Huckabee 10% 
Ben Carson 8%, Rick Santorum 8%, Ted Cruz 6%, Scott Walker 6%, Marco Rubio 4%, John Kasich 3%, Rand Paul 3%, Bobby Jindal 2%, Rick Perry 1%, Other 2%, Wouldn't vote 2%, Undecided 22%  
Public Policy Polling^{[517]}
Margin of error: ± 4%

January 15–18, 2015  Ben Carson 18% 
Jeb Bush 14% 
Mitt Romney 14% 
Chris Christie 9%, Ted Cruz 9%, Mike Huckabee 9%, Scott Walker 8%, Rand Paul 7%, Rick Santorum 6%, Someone else/Not sure 6% 
Ben Carson 19% 
Jeb Bush 18% 
Chris Christie 12% 
Ted Cruz 10%, Mike Huckabee 10%, Scott Walker 9%, Rand Paul 8%, Rick Santorum 8%, Someone else/Not sure 7%  
Public Policy Polling^{[518]}
Margin of error: ± 5.4%

May 30 – June 1, 2014  Chris Christie 23% 
Mike Huckabee 14% 
Rand Paul 12% 
Jeb Bush 10%, Ted Cruz 10%, Rick Santorum 8%, Marco Rubio 6%, Paul Ryan 4%, Scott Walker 3%, Someone else/Not sure 9% 
Public Policy Polling^{[519]}
Margin of error: ± 4.4%

November 22–25, 2013  Chris Christie 26% 
Ted Cruz 16% 
Rand Paul 14% 
Jeb Bush 10%, Rick Santorum 8%, Marco Rubio 6%, Paul Ryan 5%, Bobby Jindal 3%, Scott Walker 3%, Someone Else/Undecided 9% 
Public Policy Polling^{[520]}
Margin of error: ± 5.1%

March 8–10, 2013  Chris Christie 20% 
Rand Paul 17% 
Marco Rubio 17% 
Jeb Bush 10%, Rick Santorum 10%, Mike Huckabee 9%, Paul Ryan 6%, Bobby Jindal 4%, Rick Perry 1%, Someone Else/Undecided 6% 
Winner: Donald Trump
Primary date: April 26, 2016
Poll source  Date  1st  2nd  3rd  Other 

Primary results^{[521]}  April 26, 2016  Donald Trump 62.92% 
John Kasich 24.01% 
Ted Cruz 10.29% 
Marco Rubio 0.61% 
Gravis Marketing^{[61]}
Margin of error: ± 4.0%

April 23–24, 2016  Donald Trump 58%  John Kasich 21% 
Ted Cruz 10% 
Undecided 11% 
Public Policy Polling^{[62]}
Margin of error: ± 4.3%

April 22–24, 2016  Donald Trump 61%  John Kasich 23% 
Ted Cruz 13% 
Undecided 2% 
Brown University^{[522]}
Margin of error: ± 7.0%

April 19–21, 2016  Donald Trump 38% 
John Kasich 25% 
Ted Cruz 14% 
Undecided 17%, Other 6% 
Brown University^{[523]}
Margin of error: ± ?%

February 22–23, 2016  Donald Trump 43% 
Marco Rubio 25% 
John Kasich 14% 
Ted Cruz 10%, Ben Carson 3%, Undecided 5% 
Brown University^{[524]}
Margin of error: ± ?%

February 17–20, 2016  Donald Trump 41% 
Marco Rubio 14% 
John Kasich 12% 
Ted Cruz 8%, Jeb Bush 7%, Ben Carson 4%, Other 1%, Undecided 13% 
Winner: Donald Trump
Primary date: February 20, 2016
Poll source  Date  1st  2nd  3rd  Other 

Primary results^{[525]}  February 20, 2016  Donald Trump 32.51% 
Marco Rubio 22.48% 
Ted Cruz 22.33% 
Jeb Bush 7.84%, John Kasich 7.61%, Ben Carson 7.23% 
Opinion Savvy/ Augusta Chronicle^{[526]} Margin of error: ± 3.5% Sample size: 780 
February 18–19, 2016  Donald Trump 26.9% 
Marco Rubio 24.1% 
Ted Cruz 18.8% 
Jeb Bush 10.6%, Ben Carson 8.2%, John Kasich 7.5%, Undecided 3.9% 
South Carolina House GOP^{[527]} Margin of error: ± 2.0% Sample size: 3500 
February 18, 2016  Donald Trump 33.51% 
Ted Cruz 18.96% 
Marco Rubio 18.07% 
Jeb Bush 11.56%, John Kasich 8.49%, Ben Carson 5.22%, Undecided 4.19% 
National Research^{[528]}
Margin of error: ± ?% Sample size: 500 
February 17–18, 2016  Donald Trump 32% 
Ted Cruz 19% 
Marco Rubio 18% 
Jeb Bush 8%, John Kasich 7%, Ben Carson 6%, Refused 2%, Undecided 7% 
ARG^{[529]}
Margin of error: ± 5.0% Sample size: 401 
February 17–18, 2016  Donald Trump 34% 
Marco Rubio 22% 
John Kasich 14% 
Ted Cruz 13%, Jeb Bush 9%, Ben Carson 4%, Other 1%, Undecided 3% 
Emerson College^{[530]}
Margin of error: ± 4.7% Sample size: 418 
February 16–18, 2016  Donald Trump 36% 
Ted Cruz 19% 
Marco Rubio 18% 
John Kasich 10%, Jeb Bush 10%, Ben Carson 6% 
Clemson University^{[531]}
Margin of error: ± 3.0% Sample size: 650 
February 14–18, 2016  Donald Trump 28% 
Ted Cruz 19% 
Marco Rubio 15% 
Jeb Bush 10%, John Kasich 9%, Ben Carson 6%, Undecided 13% 
ARG^{[532]}
Margin of error: ± 5.0% Sample size: 400 
February 16–17, 2016  Donald Trump 33% 
Marco Rubio 20% 
John Kasich 15% 
Ted Cruz 13%, Jeb Bush 8%, Ben Carson 3%, Other 1%, Undecided 7% 
Harper Polling^{[533]}
Margin of error: ± 4% Sample size: 599 
February 16–17, 2016  Donald Trump 29% 
Ted Cruz 17% 
Marco Rubio 15% 
Jeb Bush 14%, John Kasich 13%, Ben Carson 8%, Undecided 5% 
NBC News/Wall Street Journal/Marist College^{[534]} Margin of error: ± 3.6% Sample size: 722 
February 15–17, 2016  Donald Trump 28% 
Ted Cruz 23% 
Marco Rubio 15% 
Jeb Bush 13%, Ben Carson 9%, John Kasich 9%, Undecided 5% 
Fox News^{[535]}
Margin of error: ± 3.5% Sample size: 759 
February 15–17, 2016  Donald Trump 32% 
Ted Cruz 19% 
Marco Rubio 15% 
Jeb Bush 9%, Ben Carson 9%, John Kasich 6%, Other 1%, Undecided 8% 
Emerson College^{[536]}
Margin of error: ± 5.0% Sample size: 315 
February 15–16, 2016  Donald Trump 33% 
Ted Cruz 20% 
Marco Rubio 19% 
John Kasich 9%, Jeb Bush 9%, Ben Carson 5%, Other 1%, Undecided 4% 
ARG^{[537]}
Margin of error: ± 5.0% Sample size: 400 
February 14–16, 2016  Donald Trump 33% 
Marco Rubio 16% 
Ted Cruz 14% 
John Kasich 14%, Jeb Bush 9%, Ben Carson 3%, Other 2%, Undecided 8% 
Monmouth University^{[538]}
Margin of error: ± 4.9% Sample size: 400 
February 14–16, 2016  Donald Trump 35% 
Ted Cruz 19% 
Marco Rubio 17% 
John Kasich 9%, Jeb Bush 8%, Ben Carson 7%, Undecided 5% 
Bloomberg/Selzer^{[539]}
Margin of error: ± 4.4% Sample size: 502 
February 13–16, 2016  Donald Trump 36% 
Ted Cruz 17% 
Marco Rubio 15% 
Jeb Bush 13%, Ben Carson 9%, John Kasich 7%, Undecided 3% 
Public Policy Polling^{[540]}
Margin of error: ± 3.3% Sample size: 897 
February 14–15, 2016  Donald Trump 35% 
Ted Cruz 18% 
Marco Rubio 18% 
John Kasich 10%, Jeb Bush 7%, Ben Carson 7%, Undecided 6% 
South Carolina House GOP^{[541]} Margin of error: ± 2.4% Sample size: 1700 
February 15, 2016  Donald Trump 33.57% 
Ted Cruz 15.54% 
Marco Rubio 14.83% 
Jeb Bush 14.54%, John Kasich 7.98%, Ben Carson 6.55%, Undecided 7.03% 
CNN/ORC^{[542]}
Margin of error: ± 5% Sample size: 404 
February 10–15, 2016  Donald Trump 38% 
Ted Cruz 22% 
Marco Rubio 14% 
Jeb Bush 10%, Ben Carson 6%, John Kasich 4%, Jim Gilmore 1%, Someone Else 1%, Undecided 1%, No Opinion 3% 
ARG^{[543]}
Margin of error: ± 5.0% Sample size: 400 
February 12–13, 2016  Donald Trump 35% 
John Kasich 15% 
Marco Rubio 14% 
Ted Cruz 12%, Jeb Bush 10%, Ben Carson 2%, Other 2%, Undecided 10% 
South Carolina House GOP^{[544]} Margin of error: ± ?% 
February 11–12, 2016  Donald Trump 34.5% 
Ted Cruz 15.5% 
Jeb Bush 13% 
Marco Rubio 12.5%, John Kasich 8.5%, Ben Carson 5%, Undecided 11% 
CBS News/YouGov^{[545]}
Margin of error: ± 5.2% Sample size: 744 
February 10–12, 2016  Donald Trump 42% 
Ted Cruz 20% 
Marco Rubio 15% 
John Kasich 9%, Jeb Bush 6%, Ben Carson 6%, Chris Christie 1%, Carly Fiorina 0%, Jim Gilmore 0%, No preference 1% 
Opinion Savvy/ Augusta Chronicle^{[546]} Margin of error: ± 3.5% Sample size: 779 
February 10–11, 2016  Donald Trump 36.3% 
Ted Cruz 19.6% 
Marco Rubio 14.6% 
Jeb Bush 10.9%, John Kasich 8.7%, Ben Carson 4.7%, Undecided 5.2% 
NBC/WSJ/Marist^{[192]}
Margin of error: ± 3.7% Sample size: 718 
January 17–23, 2016  Donald Trump 36% 
Ted Cruz 20% 
Marco Rubio 14% 
Jeb Bush 9%, Ben Carson 8%, Mike Huckabee 2%, Chris Christie 2%, Rand Paul 1%, John Kasich 1%, Carly Fiorina 1%, Other 0%, Undecided 6% 
CBS/YouGov^{[547]}
Margin of error: ± 5.3% Sample size: 804 
January 18–21, 2016  Donald Trump 40% 
Ted Cruz 21% 
Marco Rubio 13% 
Ben Carson 9%, Jeb Bush 8%, Rand Paul 3%, Mike Huckabee 2%, John Kasich 2%, Chris Christie 1%, Carly Fiorina 1%, Rick Santorum 0%, Jim Gilmore 0%, No Preference 0% 
Morris News/Opinion Savvy^{[548]}
Margin of error: ± 3.7% Sample size: 683 
January 15, 2016  Donald Trump 32% 
Ted Cruz 18% 
Jeb Bush 13% 
Marco Rubio 11%, Ben Carson 9%, Chris Christie 4%, Carly Fiorina 3%, Mike Huckabee 2%, John Kasich 2%, Rand Paul 2%, Rick Santorum 1%, Undecided 3% 
Associated Industries of Florida^{[549]}
Margin of error: ± 3.9%

December 16–17, 2015  Donald Trump 27% 
Ted Cruz 27% 
Marco Rubio 12% 
Ben Carson 11%, Jeb Bush 7%, Others 5%, Undecided 11% 
CBS News/YouGov^{[550]}
Margin of error: ± 5%

December 14–17, 2015  Donald Trump 38% 
Ted Cruz 23% 
Marco Rubio 12% 
Ben Carson 9%, Jeb Bush 7%, Rand Paul 4%, John Kasich 2%, Chris Christie 1%, Carly Fiorina 1%, Mike Huckabee 1%, Lindsey Graham 1%, Rick Santorum 0%, George Pataki 0%, Jim Gilmore 0%, No preference 1% 
Opinion Savvy/Augusta Chronicle^{[551]}
Margin of error: ± 4.2%

December 16, 2015  Donald Trump 28.3% 
Ted Cruz 21.1% 
Marco Rubio 11.6% 
Jeb Bush 9.6%, Ben Carson 9.5%, Chris Christie 5.5%, Carly Fiorina 4.6%, Rand Paul 2.6%, Mike Huckabee 2.1%, Lindsey Graham 1.9%, John Kasich 1.4%, Rick Santorum 0.5%, George Pataki 0.2%, Undecided 1.3% 
Winthrop University^{[552]}
Margin of error: ± 3.4%

November 30 – December 7, 2015  Donald Trump 24% 
Ted Cruz 16% 
Ben Carson 14% 
Marco Rubio 11%, Jeb Bush 9%, Mike Huckabee 2%, Lindsey Graham 2%, Carly Fiorina 1%, Rand Paul 1%, Chris Christie 1%, John Kasich 1%, Rick Santorum 0%, George Pataki 0% 
Fox News^{[553]}
Margin of error: ± 4.5%

December 5–8, 2015  Donald Trump 35% 
Ben Carson 15% 
Marco Rubio/Ted Cruz 14% 
Jeb Bush 5%, Rand Paul 2%, Lindsey Graham 2%, Chris Christie 2%, Carly Fiorina 1%, John Kasich 1%, Mike Huckabee 1%, Rick Santorum 1%, George Pataki 0%, None of the Above 1%, Don't Know 5% 
CBS News/YouGov^{[219]}
Margin of error: ± 5.1%

November 15–19, 2015  Donald Trump 35% 
Ben Carson 19% 
Marco Rubio 16% 
Ted Cruz 13%, Jeb Bush 5%, Lindsey Graham 3%, Carly Fiorina 2%, Mike Huckabee 2%, John Kasich 2%, Chris Christie 1%, Rand Paul 1%, Rick Santorum 1%, George Pataki 0%, Bobby Jindal 0%, Jim Gilmore 0% 
Public Policy Polling^{[554]}
Margin of error: ± 3.5%

November 7–8, 2015  Donald Trump 25% 
Ben Carson 21% 
Ted Cruz 15% 
Marco Rubio 13%, Jeb Bush 8%, Carly Fiorina 5%, John Kasich 3%, Lindsey Graham 2%, Mike Huckabee 2%, Rand Paul 1%, Chris Christie 1%, Rick Santorum 1%, Bobby Jindal 0%, Jim Gilmore 0%, George Pataki 0%, Undecided 3% 
CBS News/YouGov^{[555]}
Margin of error: ± 3.4%

October 15–23, 2015  Donald Trump 40% 
Ben Carson 23% 
Ted Cruz 8% 
Marco Rubio 7%, Jeb Bush 6%, Carly Fiorina 3%, Lindsey Graham 2%, Mike Huckabee 2%, John Kasich 2%, Rand Paul 1%, Chris Christie 1%, Bobby Jindal 1%, Rick Santorum 1%, Jim Gilmore 0%, George Pataki 0%, No Preference 5% 
ClemsonPalmetto^{[556]}
Margin of error: ± 4%

October 13–23, 2015  Donald Trump 23% 
Ben Carson 19% 
Ted Cruz 8% 
Carly Fiorina 6%, Jeb Bush 7%, Marco Rubio 5%, Lindsey Graham 3%, Rand Paul 1%, Mike Huckabee 2%, Chris Christie 1%, John Kasich 2%, Bobby Jindal 1%, Rick Santorum 0%, Jim Gilmore 0%, George Pataki 0%, undecided/DK 15% 
CNN/ORC^{[557]}
Margin of error: ± 4.5%

October 3–10, 2015  Donald Trump 36% 
Ben Carson 18% 
Marco Rubio 9% 
Carly Fiorina 7%, Jeb Bush 6%, Ted Cruz 5%, Lindsey Graham 5%, Rand Paul 4%, Mike Huckabee 3%, Chris Christie 2%, John Kasich 1%, Rick Santorum 1%, Jim Gilmore *%, George Pataki *% Bobby Jindal *%, None 1%, No opinion 4% 
Gravis Marketing^{[558]}
Margin of error: ± 3.6%

October 1, 2015  Donald Trump 29.1% 
Ben Carson 16.4% 
Carly Fiorina 11.1% 
Ted Cruz 8.1%, Marco Rubio 8%, Jeb Bush 5.9%, John Kasich 3.5%, Mike Huckabee 3.1%, Lindsey Graham 1.5%, Chris Christie 1.4%, Rand Paul 0.9%, Rick Santorum 0.5%, George Pataki 0.3% Bobby Jindal 0.3%, Unsure 9.9% 
CBS News/YouGov^{[559]}
Margin of error: ± 4.5%

September 3–10, 2015  Donald Trump 36% 
Ben Carson 21% 
Ted Cruz 6% 
Lindsey Graham 5%, Jeb Bush 5%, John Kasich 4%, Mike Huckabee 3%, Carly Fiorina 3%, Marco Rubio 3%, Scott Walker 3%, Chris Christie 2%, Bobby Jindal 1%, Rick Santorum 1%, Rand Paul 1%, Rick Perry 0%, George Pataki 0%, Jim Gilmore 0%, No preference 5% 
Public Policy Polling^{[560]}
Margin of error: ± 3.6%

September 3–6, 2015  Donald Trump 37% 
Ben Carson 21% 
Ted Cruz 6% 
Jeb Bush 6%, Carly Fiorina 4%, John Kasich 4%, Marco Rubio 4%, Lindsey Graham 3%, Mike Huckabee 3%, Scott Walker 3%, Rand Paul 3%, Rick Santorum 2%, Rick Perry 1%, Chris Christie 1%, Bobby Jindal 1%, George Pataki 0%, Jim Gilmore 0% 
Monmouth University^{[561]}
Margin of error: ± 4.6%

August 20–23, 2015  Donald Trump 30% 
Ben Carson 15% 
Jeb Bush 9% 
Carly Fiorina 6%, Marco Rubio 6%, Ted Cruz 5%, Lindsey Graham 4%, Scott Walker 4%, John Kasich 3%, Mike Huckabee 3%, Rand Paul 3%, Chris Christie 2%, Rick Santorum 1%, Rick Perry 0%, George Pataki 0%, Bobby Jindal 0%, Jim Gilmore 0%, Undecided 11% 
Opinion Savvy/Insider Advantage^{[562]}
Margin of error: ± 4.3%

August 3, 2015  Donald Trump 31.3% 
Jeb Bush 13.9% 
Ben Carson 9.9% 
Mike Huckabee 8.5%, Lindsey Graham 6.5%, Scott Walker 5.8%, Ted Cruz 4.3%, Chris Christie 4.1%, John Kasich 3.1%, Marco Rubio 2.3%, Carly Fiorina 1.8%, Rand Paul 1.7%, Bobby Jindal 0.7%, Rick Perry 0.6%, Rick Santorum 0.1%, George Pataki 0%, Someone else 3.1%, Undecided 2.5% 
Gravis Marketing^{[563]}
Margin of error: ± 4.0%

July 29–30, 2015  Donald Trump 34% 
Ben Carson 10.9% 
Jeb Bush 10.5% 
Scott Walker 10.3%, Marco Rubio 6%, Mike Huckabee 5.5%, Lindsey Graham 4.9%, Ted Cruz 3.4%, John Kasich 3.3%, Chris Christie 2.5%, Rick Perry 2.5%, Carly Fiorina 2.4%, Rick Santorum 1.3%, Rand Paul 1%, Bobby Jindal 0.9%, George Pataki 0.7% 
Morning Consult^{[564]}
Margin of error: ± 5.0%

May 31 – June 8, 2015  Lindsey Graham 14% 
Ben Carson 12% 
Jeb Bush 11% 
Scott Walker 10%, Marco Rubio 8%, Mike Huckabee 7%, Ted Cruz 6%, Chris Christie 5%, Rand Paul 5%, Donald Trump 2%, Carly Fiorina 1%, Don't know/No Opinion/Refused 16%, Someone else 2% 
Winthrop University^{[565]}
Margin of error: ± 3.2%

April 4–12, 2015  Scott Walker 13.6% 
Jeb Bush 12.7% 
Ted Cruz 8.1% 
Lindsey Graham 7.6%, Rand Paul 6.2%, Chris Christie 5%, Ben Carson 4.9%, Mike Huckabee 4.9%, Marco Rubio 4%, Rick Perry 1.9%, Donald Trump 1.9%, Bobby Jindal 0.9%, Rick Santorum 0.3%, John Bolton 0.2%, Other 1.4%, Undecided 25.1% 
Gravis Marketing^{[566]}
Margin of error: ± 3%

March 26–27, 2015  Scott Walker 17% 
Jeb Bush 16% 
Ted Cruz 13% 
Lindsey Graham 9%, Mike Huckabee 7%, Chris Christie 6%, Marco Rubio 6%, Rand Paul 5%, Rick Santorum 2%, Carly Fiorina 2%, Undecided 18% 
Gravis Marketing^{[567]}
Margin of error: ± 3%

February 24–25, 2015  Jeb Bush 19% 
Scott Walker 17% 
Lindsey Graham 12% 
Mike Huckabee 10%, Chris Christie 8%, Rand Paul 6%, Marco Rubio 6%, Ted Cruz 2%, Carly Fiorina 2%, Rick Santorum 2%, Undecided 16% 
Public Policy Polling^{[568]}
Margin of error: ± 4.3%

February 12–15, 2015  Jeb Bush 19% 
Scott Walker 18% 
Ben Carson 13% 
Lindsey Graham 13%, Mike Huckabee 12%, Chris Christie 7%, Rand Paul 5%, Ted Cruz 3%, Rick Perry 3%, Other/Undecided 6% 
NBC News/Marist^{[569]}
Margin of error: ± 4.6%

February 3–10, 2015  Lindsey Graham 17% 
Jeb Bush 15% 
Scott Walker 12% 
Ben Carson 10%, Mike Huckabee 10%, Rand Paul 7%, Chris Christie 6%, Rick Perry 4%, Marco Rubio 4%, Rick Santorum 3%, Ted Cruz 1%, Undecided 11% 
Gravis Marketing^{[570]}
Margin of error: ± 3%

January 21–22, 2015  Mitt Romney 20% 
Jeb Bush 16% 
Scott Walker 9% 
Ted Cruz 8%, Mike Huckabee 8%, Rand Paul 7%, Marco Rubio 7%, Chris Christie 5%, Rick Perry 4%, Rick Santorum 4%, Undecided 12% 
Jeb Bush 18% 
Mike Huckabee 11% 
Scott Walker 11% 
Ted Cruz 9%, Marco Rubio 9%, Chris Christie 8%, Rand Paul 8%, Rick Perry 5%, Rick Santorum 4%, Undecided 17%  
Clemson University^{[571]}
Margin of error: ± 6%

May 22–29, 2014  Jeb Bush 22% 
Chris Christie 10% 
Ted Cruz 9% 
Rand Paul 9%, Marco Rubio 6%, Bobby Jindal 3%, Undecided/Don't know 48% 
Gravis Marketing^{[572]}
Margin of error: ± 4%

March 6–7, 2014  Jeb Bush 22% 
Mike Huckabee 19% 
Chris Christie 12% 
Ted Cruz 8%, Rand Paul 8%, Marco Rubio 6%, Scott Walker 5%, Rick Santorum 2%, Undecided 19% 
Gravis Marketing^{[573]}
Margin of error: ± 4%

November 30 – December 2, 2013  Chris Christie 16.6% 
Jeb Bush 16% 
Mike Huckabee 15.8% 
Ted Cruz 11.1%, Rand Paul 9.7%, Marco Rubio 7.2%, Rick Santorum 2.8%, Scott Walker 2.3%, Undecided 18.5% 
Harper Polling^{[574]}
Margin of error: ± 5.03%

October 27–28, 2013  Chris Christie 19% 
Ted Cruz 17% 
Rand Paul 13% 
Marco Rubio 12%, Paul Ryan 12%, Bobby Jindal 6%, Not sure 21% 
Winner: Donald Trump
Primary date: June 7, 2016
Poll source  Date  1st  2nd  3rd 

Primary results^{[575]}  June 7, 2016  Donald Trump 67.06% 
Ted Cruz 16.99% 
John Kasich 15.95% 
Winner: Donald Trump
Primary date: March 1, 2016
Poll source  Date  1st  2nd  3rd  Other 

Primary results^{[576]}  March 1, 2016  Donald Trump 38.94% 
Ted Cruz 24.71% 
Marco Rubio 21.18% 
Ben Carson 7.59%, John Kasich 5.29%, Jeb Bush 1.12%, Mike Huckabee 0.28%, Rand Paul 0.27%, Chris Christie 0.15%, Carly Fiorina 0.08%, Rick Santorum 0.08%, Jim Gilmore 0.03%, Lindsey Graham 0.03%, George Pataki 0.02% 
SurveyMonkey^{[2]}
Margin of error: ± ?% Sample size: 772 
February 22–29, 2016  Donald Trump 48% 
Marco Rubio 18% 
Ted Cruz 15% 
Ben Carson 10%, John Kasich 5%, Undecided 4% 
NBC News/Wall Street Journal/Marist^{[577]} Margin of error: ± 3.8%

February 22–25, 2016  Donald Trump 40% 
Ted Cruz 22% 
Marco Rubio 19% 
Ben Carson 9%, John Kasich 6% 
Vanderbilt/PSRA^{[578]}
Margin of error: 5.6%

November 11–23, 2015  Donald Trump 29% 
Ben Carson 25% 
Ted Cruz 14% 
Marco Rubio 12%, Jeb Bush 6%, Carly Fiorina 2%, Undecided 7%, Other 4%, Wouldn't Vote 1% 
Opinion Savvy/Insider Advantage^{[579]}
Margin of error: 4.6%

August 2–3, 2015  Donald Trump 35.3% 
Ben Carson 14.5% 
Jeb Bush 11.7% 
Mike Huckabee 6.5%, Ted Cruz 6.2%, Scott Walker 5.8%, John Kasich 3.3%, Rand Paul 3%, Marco Rubio 2.8%, Chris Christie 1.7%, Carly Fiorina 1.7%, Bobby Jindal 1.4%, Rick Santorum 0.7%, George Pataki 0.3%, Lindsey Graham 0.2%, Rick Perry 0.2%, Someone else 1.3%, Undecided 3.5% 
Winner: Ted Cruz
Primary date: March 1, 2016
Poll source  Date  1st  2nd  3rd  Other 

Primary results^{[580]}  March 1, 2016  Ted Cruz 43.76% 
Donald Trump 26.75% 
Marco Rubio 17.74% 
John Kasich 4.25%, Ben Carson 4.16%, Jeb Bush 1.25%, Rand Paul 0.28%, Mike Huckabee 0.22%, Chris Christie 0.12%, Carly Fiorina 0.11%, Rick Santorum 0.07%, Lindsey Graham 0.06% 
SurveyMonkey^{[2]}
Margin of error: ± ?% Sample size: 613 
February 22–29, 2016  Ted Cruz 33% 
Donald Trump 31% 
Marco Rubio 19% 
Ben Carson 9%, John Kasich 5%, Undecided 4% 
Fox News/Opinion Savvy^{[581]}
Margin of error: ± 3.7% Sample size: 712 
February 28, 2016  Ted Cruz 36.2% 
Donald Trump 25.3% 
Marco Rubio 19.2% 
John Kasich 8.5%, Ben Carson 7.9%, Undecided 2.8% 
ARG^{[582]}
Margin of error: ± 5% Sample size: 400 
February 26–28, 2016  Ted Cruz 33% 
Donald Trump 32% 
Marco Rubio 17% 
John Kasich 7%, Ben Carson 6%, Undecided 5% 
Emerson College^{[583]}
Margin of error: ± 4.6%

February 26–28, 2016  Ted Cruz 35% 
Donald Trump 32% 
Marco Rubio 16% 
John Kasich 9%, Ben Carson 4% 
CBS/YouGov^{[140]}
Margin of error: ± 5.6% Sample size: 796 
February 22–26, 2016  Ted Cruz 42% 
Donald Trump 31% 
Marco Rubio 19% 
John Kasich 4%, Ben Carson 4% 
Monmouth University^{[584]}
Margin of error: ± 4.6%

February 22–24, 2016  Ted Cruz 38% 
Donald Trump 23% 
Marco Rubio 21% 
Ben Carson 6%, John Kasich 5%, Other 1%, Undecided 6% 
Emerson College^{[585]}
Margin of error: ± 4.6%

February 21–23, 2016  Ted Cruz 29% 
Donald Trump 28% 
Marco Rubio 25% 
John Kasich 9%, Ben Carson 4%, Other 1%, Undecided 5% 
NBC News/Wall Street Journal/Marist^{[577]} Margin of error: ± 4.2%

February 18–23, 2016  Ted Cruz 39% 
Donald Trump 26% 
Marco Rubio 16% 
Ben Carson 8%, John Kasich 6% 
KTVTCBS 11/ Dixie Strategies^{[586]} Margin of error: ± 3.64%

February 22, 2016  Ted Cruz 33.24% 
Donald Trump 24.83% 
Marco Rubio 14.76% 
John Kasich 8%, Ben Carson 5.79%, Undecided 13.38% 
TEGNA/SurveyUSA^{[587]}
Margin of error: ± 3.9%

February 21–22, 2016  Ted Cruz 32% 
Donald Trump 32% 
Marco Rubio 17% 
John Kasich 6%, Ben Carson 5%, Other 2%, Undecided 5% 
Austin AmericanStatesman^{[588]}
Margin of error: ± 4%

February 19–22, 2016  Ted Cruz 38% 
Donald Trump 26% 
Marco Rubio 13% 
John Kasich 7%, Ben Carson 6%, Other 2%, Not Sure 7% 
University of Houston^{[589]}
Margin of error: ± 4.8%

February 12–22, 2016  Ted Cruz 35% 
Donald Trump 20% 
Marco Rubio 8% 
Ben Carson 7%, Jeb Bush 5%, John Kasich 4%, Undecided 19%, Refused 2% 
University of Texas/ Texas Tribune^{[590]} Margin of error: ± 4.21%

February 12–19, 2016  Ted Cruz 37% 
Donald Trump 29% 
Marco Rubio 15% 
Jeb Bush 6%, John Kasich 5%, Ben Carson 4%, Rand Paul 2%, Carly Fiorina 1%, Rick Santorum 1%, Elizabeth Gray 1% 
KTVTCBS 11/ Dixie Strategies^{[591]} Margin of error: ± 3.1%

January 25–26, 2016  Ted Cruz 30.27% 
Donald Trump 25.27% 
Marco Rubio 11.99% 
Jeb Bush 8.19%, Ben Carson 5.29%, Chris Christie 3.3%, John Kasich 2.6%, Carly Fiorina 2.3%, Mike Huckabee 1.4%, Rand Paul 0.5%, Rick Santorum 0.3%, Jim Gilmore 0.1%, Undecided 8.49% 
CBS/YouGov^{[592]}
Margin of error: ± 4.4%

January 18–21, 2016  Ted Cruz 45% 
Donald Trump 30% 
Marco Rubio 8% 
Ben Carson 5%, Jeb Bush 4%, Chris Christie 2%, Rand Paul 2%, Carly Fiorina 1%, Mike Huckabee 1%, John Kasich 1%, Jim Gilmore 0%, Rick Santorum 0%, No preference 1% 
UT/Texas Tribune^{[593]}
Margin of error: ± 4.21%

October 30 – November 8, 2015  Ted Cruz 27% 
Donald Trump 27% 
Ben Carson 13% 
Marco Rubio 9%, Jeb Bush 4%, Carly Fiorina 4%, Rand Paul 4%, Mike Huckabee 2%, Chris Christie 1%, Rick Santorum 1%, John Kasich 1%, Bobby Jindal 0%, George Pataki 0%, Lindsey Graham 0%, Jim Gilmore 0%, No opinion 5%, Other 2%, Undecided 10% 
CBSDFW^{[594]}
Margin of error: ± 3.02%

October 23–24, 2015  Ben Carson 22.93% 
Donald Trump 22.17% 
Ted Cruz 14.27% 
Jeb Bush 12.65%, Marco Rubio 6.57%, Carly Fiorina 4.57%, Mike Huckabee 3.14%, Chris Christie 2.47%, Rand Paul 1.33%, Undecided 9.90% 
Texas Lyceum^{[595]}
Margin of error: ± 6.01%

September 8–21, 2015  Donald Trump 21% 
Ted Cruz 16% 
Ben Carson 12% 
Jeb Bush 10%, Carly Fiorina 6%, Marco Rubio 3%, Mike Huckabee 2%, Rick Perry 1%, Rand Paul 1%, John Kasich 1%, Bobby Jindal 1%, Rick Santorum 1%, George Pataki 1%, Lindsey Graham 0%, Chris Christie 0%, Jim Gilmore 0%, Scott Walker 0%, No opinion 5% 
Gravis Marketing^{[596]}
Margin of error: ± 3%

August 20, 2015  Donald Trump 24% 
Ted Cruz 16% 
Ben Carson 12% 
Jeb Bush 9%, Carly Fiorina 5%, Marco Rubio 5%, Rick Perry 4%, Mike Huckabee 4%, Scott Walker 4%, Other/Unsure 16% 
Opinion Savvy/Insider Advantage^{[597]}
Margin of error: ± 4.3%

August 2–3, 2015  Ted Cruz 20% 
Donald Trump 19.4% 
Jeb Bush 16.9% 
Ben Carson 10.5%, Scott Walker 6.9%, Mike Huckabee 3.9%, John Kasich 3.7%, Bobby Jindal 2.5%, Marco Rubio 2.4%, Rick Perry 2.3%, Rand Paul 2.2%, Carly Fiorina 2.1%, Chris Christie 1.5%, Lindsey Graham 0.9%, George Pataki 0.3%, Rick Santorum 0.3%, Other 2%, Undecided 2.6% 
UoT/Texas Tribune^{[598]}
Margin of error: ± 4.75%

June 5–14, 2015  Ted Cruz 20% 
Rick Perry 12% 
Scott Walker 10% 
Marco Rubio 8%, Jeb Bush 7%, Ben Carson 6%, Rand Paul 6%, Mike Huckabee 5%, Carly Fiorina 3%, Rick Santorum 2%, Donald Trump 2%, Chris Christie 1%, Bobby Jindal 1%, John Kasich 1%, Lindsey Graham 1%, George Pataki 0%, No opinion 15% 
UoT/Texas Tribune^{[599]}
Margin of error: ± 4.19%

February 6–15, 2015  Ted Cruz 20% 
Scott Walker 19% 
Jeb Bush 9% 
Ben Carson 9%, Rick Perry 8%, Mike Huckabee 5%, Rand Paul 4%, Marco Rubio 4%, Sarah Palin 3%, Chris Christie 2%, Bobby Jindal 1%, John Kasich 1%, Rick Santorum 1%, John Bolton 0%, Carly Fiorina 0%, Lindsey Graham 0%, Undecided 13% 
UoT/Texas Tribune^{[600]}
Margin of error: ± 4.14%

October 10–19, 2014  Ted Cruz 27% 
Rick Perry 14% 
Ben Carson 10% 
Jeb Bush 7%, Mike Huckabee 7%, Rand Paul 7%, Paul Ryan 4%, Chris Christie 3%, Marco Rubio 3%, Bobby Jindal 2%, Scott Walker 2%, Rick Santorum 1%, John Kasich 0%, Undecided 11% 
UoT/Texas Tribune^{[601]}
Margin of error: ± 4.37%

May 30 – June 8, 2014  Ted Cruz 33% 
Rand Paul 9% 
Mike Huckabee 8% 
Jeb Bush 7%, Rick Perry 7%, Marco Rubio 6%, Paul Ryan 6%, Scott Walker 4%, Chris Christie 3%, Bobby Jindal 2%, Rick Santorum 1%, Undecided 13% 
Public Policy Polling^{[602]}
Margin of error: ± 5.7%

April 10–13, 2014  Ted Cruz 25% 
Jeb Bush 14% 
Mike Huckabee 10% 
Rand Paul 10%, Rick Perry 10%, Chris Christie 5%, Paul Ryan 5%, Bobby Jindal 4%, Marco Rubio 4%, Other/Undecided 12% 
UoT/Texas Tribune^{[603]}
Margin of error: ± 4.21%

February 7–17, 2014  Ted Cruz 28% 
Rand Paul 10% 
Rick Perry 10% 
Jeb Bush 8%, Paul Ryan 8%, Bobby Jindal 6%, Marco Rubio 6%, Scott Walker 6%, Chris Christie 4%, Rick Santorum 4%, Undecided 12% 
Public Policy Polling^{[604]}
Margin of error: ± 5%

November 1–4, 2013  Ted Cruz 32% 
Jeb Bush 13% 
Chris Christie 13% 
Rand Paul 10%, Bobby Jindal 6%, Marco Rubio 5%, Paul Ryan 5%, Rick Perry 3%, Rick Santorum 3%, Someone Else/Undecided 10% 
Public Policy Polling^{[605]}
Margin of error: ± 5.5%

June 28 – July 1, 2013  Ted Cruz 27% 
Jeb Bush 15% 
Chris Christie 11% 
Rand Paul 11%, Paul Ryan 9%, Rick Perry 7%, Marco Rubio 6%, Rick Santorum 4%, Bobby Jindal 3%, Someone Else/Undecided 8% 
UoT/Texas Tribune^{[606]}
Margin of error: ± 5.27%

May 31 – June 9, 2013  Ted Cruz 25% 
Rand Paul 13% 
Marco Rubio 11% 
Rick Perry 10%, Chris Christie 8%, Paul Ryan 8%, Rick Santorum 2%, Bobby Jindal 2%, Don't Know 21% 
Public Policy Polling^{[607]}
Margin of error: ± 4.9%

Jan. 24–27, 2013  Marco Rubio 21% 
Mike Huckabee 14% 
Rand Paul 13% 
Jeb Bush 11%, Paul Ryan 11%, Chris Christie 9%, Bobby Jindal 4%, Rick Perry 4%, Susana Martinez 2%, Someone Else/Undecided 10% 
Winner: Ted Cruz
Primary date: March 22, 2016
Poll source  Date  1st  2nd  3rd  Other 

Caucus results^{[608]}  March 22, 2016  Ted Cruz 69.17% 
John Kasich 16.81% 
Donald Trump 14.03% 

Y2 Analytics^{[609]}
Margin of error: ± 4.38%

March 17–19, 2016  Ted Cruz 53% 
John Kasich 29% 
Donald Trump 11% 
Other 2%, Undecided 5% 
Dan Jones and Associates^{[610]}
Margin of error: ± 7%

March 8–15, 2016  Ted Cruz 42% 
Donald Trump 21% 
Marco Rubio 17%  John Kasich 13%, Undecided 7% 
Dan Jones and Associates^{[611]}
Margin of error: ± 3.92%

February 10–15, 2016  Marco Rubio 24% 
Ted Cruz 22% 
Donald Trump 18% 
Jeb Bush 9%, Ben Carson 9%, John Kasich 4%, Other 2%, Undecided 11% 
Salt Lake Tribune/SurveyUSA^{[612]}
Margin of error: ± 4.9%

January 6–13, 2016  Ted Cruz 18% 
Donald Trump 17% 
Ben Carson 15% 
Marco Rubio 15%, Jeb Bush 7%, Carly Fiorina 5%, Rand Paul 4%, Chris Christie 2%, John Kasich 1%, Rick Santorum 0%, Mike Huckabee 0%, Undecided 16% 
Dan Jones and Associates^{[613]}
Margin of error: ± 3.93%

December 8–14, 2015  Ted Cruz 20% 
Ben Carson 18% 
Marco Rubio 18% 
Donald Trump 12%, Other/Don't know ?% 
Dan Jones and Associates^{[614]}
Margin of error: ± 4%

September 8–17, 2015  Ben Carson 23% 
Donald Trump 15% 
Jeb Bush 12% 
Other/Don't know ?% 
Dan Jones and Associates^{[615]}
Margin of error: ± ?

July 14–21, 2015  Jeb Bush 22% 
Scott Walker 11% 
Marco Rubio 9% 
Donald Trump 8%, Other/Don't know ?% 
Dan Jones & Associates^{[616]}
Margin of error: ±4.86%

March 3–5, 2015  Jeb Bush 14% 
Scott Walker 12% 
Rand Paul 12% 
Marco Rubio 5%, Chris Christie 4%, Lindsey Graham 2%, Bobby Jindal 1%, Other/Don't know 50% 
Winner: Donald Trump
Primary date: March 1, 2016
Poll source  Date  1st  2nd  3rd  Other 

Primary results^{[617]}  March 1, 2016  Donald Trump 32.34% 
John Kasich 30.01% 
Marco Rubio 19.08% 
Ted Cruz 9.61%, Ben Carson 4.13%, Jeb Bush 1.79%, Rand Paul 0.68%, Chris Christie 0.58%, Carly Fiorina 0.34%, Rick Santorum 0.27% 
Castleton University/Vermont Public Radio^{[618]} Margin of error: ± 9.01% Sample size: 118 
February 3–17, 2016  Donald Trump 32.4% 
Marco Rubio 16.9% 
Ted Cruz 10.5% 
John Kasich 10.0%, Jeb Bush 7.7%, Ben Carson 3.1%, Chris Christie 2.4%, Carly Fiorina 1.0%, Rick Santorum 0.6%, Someone else 3.3%, Not sure/Don't know 12.1% 
Winner: Donald Trump
Primary date: March 1, 2016
Poll source  Date  1st  2nd  3rd  Other 

Primary results^{[619]}  March 1, 2016  Donald Trump 34.80% 
Marco Rubio 31.98% 
Ted Cruz 16.69% 
John Kasich 9.54%, Ben Carson 5.87%, Jeb Bush 0.36%, Rand Paul 0.28%, Mike Huckabee 0.14%, Chris Christie 0.11%, Carly Fiorina 0.09%, Jim Gilmore 0.06%, Lindsey Graham 0.04%, Rick Santorum 0.04% 
SurveyMonkey^{[2]}
Margin of error: ± ?% Sample size: 848 
February 22–29, 2016  Donald Trump 36% 
Marco Rubio 26% 
Ted Cruz 13% 
Ben Carson 11%, John Kasich 7%, Undecided 8% 
CBS/YouGov^{[620]}
Margin of error: ± 8.6% Sample size: 481 
February 22–26, 2016  Donald Trump 40% 
Marco Rubio 27% 
Ted Cruz 22% 
John Kasich 6%, Ben Carson 4%, Undecided 1% 
Monmouth University^{[621]}
Margin of error: ± 4.8% Sample size: 421 
February 22–24, 2016  Donald Trump 41% 
Marco Rubio 27% 
Ted Cruz 14% 
John Kasich 7%, Ben Carson 7%, Undecided 4% 
Roanoke College^{[622]}
Margin of error: ± 4.5% Sample size: 466 
February 16–24, 2016  Donald Trump 38% 
Ted Cruz 15% 
Marco Rubio 13% 
John Kasich 8%, Ben Carson 8%, Undecided 19% 
Christopher Newport University^{[623]}
Margin of error: ± 5.6%

February 3–14, 2016  Donald Trump 28% 
Marco Rubio 22% 
Ted Cruz 19% 
Ben Carson 7%, John Kasich 7%, Jeb Bush 4%, Chris Christie 4%, Carly Fiorina 2%, Jim Gilmore <1%, Someone else 1%, Undecided 6% 
University of Mary Washington^{[624]}
Margin of error: ± ?%

November 4–9, 2015  Ben Carson 29% 
Donald Trump 24% 
Marco Rubio 11% 
Ted Cruz 10%, Jeb Bush 5%, Carly Fiorina 5%, Rand Paul 4%, Chris Christie 4%, Mike Huckabee 4%, John Kasich 1%, Jim Gilmore 0%, Don't know 2% 
Christopher Newport University^{[625]}
Margin of error: ± 5.1%

September 29 – October 8, 2015  Donald Trump 23% 
Ben Carson 17% 
Marco Rubio 14% 
Carly Fiorina 13%, Jeb Bush 9%, Ted Cruz 5%, Chris Christie 4%, Mike Huckabee 3%, John Kasich 2%, Rand Paul 2%, Lindsey Graham 1%, Bobby Jindal <1%, George Pataki <1%, Rick Santorum <1%, Jim Gilmore <1%, Someone else 1%, Undecided 5% 
Opinion Savvy/Insider Advantage^{[626]}
Margin of error: ± 4.1%

August 2–3, 2015  Donald Trump 27.9% 
Jeb Bush 14.8% 
Scott Walker 10.1% 
Ben Carson 8%, Carly Fiorina 6.8%, Ted Cruz 6.4%, Rand Paul 5.1%, Marco Rubio 3.5%, John Kasich 3.2%, Chris Christie 3.1%, Rick Perry 2.3%, Mike Huckabee 1.5%, Bobby Jindal 1%, Lindsey Graham 0.7%, George Pataki 0.7%, Rick Santorum 0%, Someone else 1.8%, Undecided 3.2% 
Public Policy Polling^{[627]}
Margin of error: ± 4.4%

July 13–15, 2015  Jeb Bush 18% 
Donald Trump 14% 
Scott Walker 14% 
Ben Carson 10%, Mike Huckabee 8%, Marco Rubio 7%, Chris Christie 5%, Ted Cruz 5%, Carly Fiorina 5%, Rand Paul 5%, Bobby Jindal 3%, Rick Perry 2%, Jim Gilmore 1%, Lindsey Graham 1%, John Kasich 1%, Rick Santorum 1%, George Pataki 0%, Someone else/Not sure 3% 
Christopher Newport University^{[628]}
Margin of error: ± ?

April 13–24, 2015  Jeb Bush 17% 
Marco Rubio 16% 
Chris Christie 10% 
Rand Paul 10%, Scott Walker 10%, Ben Carson 7%, Ted Cruz 7%, Mike Huckabee 6%, Donald Trump 5%, Bobby Jindal 2%, Carly Fiorina 1%, John Kasich <1%, Rick Perry <1%, Rick Santorum <1%, Someone else <1%, Undecided 7% 
Christopher Newport University^{[629]}
Margin of error: ± 3.6%

January 30 – February 10, 2015  Jeb Bush 21% 
Scott Walker 16% 
Chris Christie 10% 
Mike Huckabee 10%, Ben Carson 9%, Rand Paul 6%, Marco Rubio 6%, Paul Ryan 5%, Ted Cruz 3%, John Kasich 3%, Bobby Jindal 2%, Mike Pence 1%, Rick Perry 1%, Rob Portman 1%, Rick Santorum 1%, Someone else 1%, Undecided 4% 
Christopher Newport University^{[630]}
Margin of error: ± 5.3%

February 23–28, 2014  Chris Christie 19% 
Jeb Bush 18% 
Mike Huckabee 13% 
Paul Ryan 13%, Ted Cruz 9%, Rand Paul 7%, Marco Rubio 4%, Scott Walker 3%, Undecided 13% 
University of Mary Washington^{[631]}
Margin of error: ±?

September 25–29, 2013  Chris Christie 20% 
Jeb Bush 10% 
Rand Paul 10% 
Paul Ryan 8%, Marco Rubio 7%, Ted Cruz 5%, None 14%, Don't know 19% 
Public Policy Polling^{[632]}
Margin of error: ±4.8%

July 11–14, 2013  Jeb Bush 16% 
Chris Christie 16% 
Rand Paul 15% 
Marco Rubio 12%, Paul Ryan 11%, Ted Cruz 9%, Bob McDonnell 8%, Bobby Jindal 4%, Rick Santorum 2%, Someone Else/Undecided 7% 
Public Policy Polling^{[633]}
Margin of error: ±4.4%

May 24–26, 2013  Marco Rubio 17% 
Chris Christie 15% 
Jeb Bush 14% 
Bob McDonnell 12%, Rand Paul 10%, Ted Cruz 8%, Paul Ryan 8%, Bobby Jindal 3%, Rick Santorum 2%, Someone Else/Undecided 11% 
Chris Christie 20% 
Marco Rubio 20% 
Jeb Bush 17% 
Paul Ryan 10%, Rand Paul 9%, Ted Cruz 8%, Bobby Jindal 3%, Rick Santorum 2%, Someone Else/Undecided 10%  
University of Mary Washington^{[634]}
Margin of error: ±?

March 20–24, 2013  Chris Christie 18% 
Bob McDonnell 12% 
Rand Paul 11% 
Paul Ryan 11%, Marco Rubio 9%, Jeb Bush 8%, Other 1%, None 10%, Don't know 17% 
Winner: Donald Trump
Primary date: May 24, 2016
Poll source  Date  1st  2nd  3rd  Other 

Primary results^{[635]}  May 10, 2016  Donald Trump 75.82% 
Ted Cruz 10.48% 
John Kasich 9.81% 
Ben Carson 3.89% 
Townhall/Gravis Insights^{[636]}
Margin of error: ± 4%

May 18–19, 2015  Rand Paul 13.2% 
Scott Walker 12.4% 
Jeb Bush 11.5% 
Marco Rubio 11.3%, Ben Carson 7.6%, Chris Christie 6%, Ted Cruz 5%, Mike Huckabee 5%, Carly Fiorina 3%, Rick Santorum 2%, Unsure 23% 
Public Policy Polling^{[637]}
Margin of error: ± 5.1%

May 14–17, 2015  Scott Walker 18% 
Marco Rubio 15% 
Mike Huckabee 13% 
Ted Cruz 11%, Jeb Bush 10%, Ben Carson 10%, Chris Christie 6%, Rand Paul 5%, Rick Perry 3%, Someone else/Not sure 7% 
Winner: Donald Trump
Primary date: May 10, 2016
Poll source  Date  1st  2nd  3rd  Other 

Primary results^{[638]}  May 10, 2016  Donald Trump 77.01% 
Ted Cruz 8.98% 
John Kasich 6.74% 
Ben Carson 2.17%, Marco Rubio 1.43%, Jeb Bush 1.14%, Rand Paul 0.89%, Mike Huckabee 0.87%, Chris Christie 0.36%, Carly Fiorina 0.33% 
R.L. Repass & Partners/MetroNews^{[639]}
Margin of error: ± 4%

April 22– May 2, 2016  Donald Trump 57% 
Ted Cruz 25% 
John Kasich 14% 
Undecided 4% 
Public Policy Polling^{[640]}
Margin of error: ± 4.2%

April 29– May 1, 2016  Donald Trump 61% 
Ted Cruz 22% 
John Kasich 14% 
Undecided 3% 
Metro News^{[641]}
Margin of error: ± ?%

February 11–16, 2016  Donald Trump 40% 
Ted Cruz 20% 
Marco Rubio 15% 
Ben Carson 10%, John Kasich 6%, Jeb Bush 4%, Carly Fiorina <1%, Chris Christie <1%, Not Sure 4% 
Orion Strategies^{[642]}
Margin of error: ± 4.9%

August 25, 2015  Donald Trump 29% 
Marco Rubio 8% 
Ben Carson 7% 
Jeb Bush 7%, Mike Huckabee 7%, Ted Cruz 5%, Scott Walker 2%, Carly Fiorina 2%, John Kasich 1%, Rand Paul 1%, Undecided 32% 
Harper Polling^{[643]}
Margin of error: ± 6.3%

April 9–11, 2015  Jeb Bush 23% 
Mike Huckabee 20% 
Scott Walker 13% 
Ben Carson 8%, Ted Cruz 8%, Rand Paul 7%, Chris Christie 5%, Marco Rubio 4%, Rick Santorum 1%, Undecided 11% 
Winner: Ted Cruz
Primary date: April 5, 2016
Poll source  Date  1st  2nd  3rd  Other 

Primary results^{[644]}  April 5, 2016  Ted Cruz 48.20% 
Donald Trump 35.02% 
John Kasich 14.10% 
Marco Rubio 0.96%, Ben Carson 0.51%, Jeb Bush 0.28%, Rand Paul 0.23%, Mike Huckabee 0.13%, Chris Christie 0.11%, Carly Fiorina 0.07%, Rick Santorum 0.05%, Jim Gilmore 0.02% 
ARG^{[645]}
Margin of error: ± 5% Sample size: 400 
April 1–3, 2016  Donald Trump 42% 
Ted Cruz 32% 
John Kasich 23%  Undecided 3% 
Emerson College^{[646]}
Margin of error: ± 4.1% Sample size: 549 
March 30  April 3, 2016  Ted Cruz 40% 
Donald Trump 35% 
John Kasich 21% 
Undecided 4% 
CBS News/YouGov^{[414]}
Margin of error: ± 5.7% Sample size: 675 
March 29April 1, 2016  Ted Cruz 43% 
Donald Trump 37% 
John Kasich 18% 
Other/Don't Know 2% 
Fox Business News^{[647]}
Margin of error: ± 3.5% Sample size: 742 
March 28–30, 2016  Ted Cruz 42% 
Donald Trump 32% 
John Kasich 19% 
Other 1%, Don't Know 5% 
Loras College^{[648]}
Margin of error: ± 4.8% Sample size: 416 
March 28–30, 2016  Ted Cruz 38% 
Donald Trump 31% 
John Kasich 18% 
Undecided 13% 
Public Policy Polling^{[649]}
Margin of error: ± 3.5% Sample size: 768 
March 28–29, 2016  Ted Cruz 38% 
Donald Trump 37% 
John Kasich 17% 
Undecided 9% 
Marquette University^{[650]}
Margin of error: ± 5.8% Sample size: 471 
March 24–28, 2016  Ted Cruz 39.6% 
Donald Trump 30.4% 
John Kasich 21.4% 
Someone Else 0.3%, Undecided 7.7% 
Optimus^{[651]}
Margin of error: ± 1.1% Sample size: 6182 
March 20–24, 2016  Donald Trump 29.4% 
John Kasich 27.1% 
Ted Cruz 25% 
Undecided 18.6% 
Emerson College^{[652]}
Margin of error: ± 4.6% Sample size: 439 
March 20–22, 2016  Ted Cruz 36% 
Donald Trump 35% 
John Kasich 19% 
Undecided 10% 
Marquette University^{[653]}
Margin of error: ± 7.5% Sample size: 297 
February 18–21, 2016  Donald Trump 30% 
Marco Rubio 20% 
Ted Cruz 19% 
Ben Carson 8%, John Kasich 8%, Jeb Bush 3%, Undecided 10% 
Marquette University^{[654]}
Margin of error: ± 6.5% Sample size: 313 
January 21–24, 2016  Donald Trump 24% 
Marco Rubio 18% 
Ted Cruz 16% 
Ben Carson 8%, Chris Christie 5%, Rand Paul 3%, Carly Fiorina 3%, Jeb Bush 2%, John Kasich 2%, Mike Huckabee 1%, Rick Santorum 0%, Undecided 17% 
Marquette University^{[655]}
Margin of error: ± 6.6%

November 12–15, 2015  Ben Carson 22% 
Donald Trump 19% 
Marco Rubio 19% 
Ted Cruz 9%, Jeb Bush 6%, Carly Fiorina 5%, Chris Christie 4%, Rand Paul 1%, Mike Huckabee 1%, John Kasich 1%, George Pataki <0.5%, Jim Gilmore <0.5%, Someone else 0.6%, Undecided 9.8% 
Marquette University^{[656]}
Margin of error: ± 6.5%

September 24–28, 2015  Donald Trump 20.1% 
Ben Carson 16.2% 
Marco Rubio 14.4% 
Carly Fiorina 10.8%, Jeb Bush 6.6%, Ted Cruz 5.1%, Rand Paul 4.5%, Mike Huckabee 3.4%, Chris Christie 3.1%, John Kasich 2.8%, Rick Santorum 1.2%, Bobby Jindal 0.5%, George Pataki 0.4%, Jim Gilmore 0.2%, Someone else 0.6%, Undecided 9.8% 
Marquette University^{[657]}
Margin of error: ± 6.6%

August 13–16, 2015  Scott Walker 25% 
Ben Carson 13% 
Donald Trump 9% 
Ted Cruz 8%, Carly Fiorina 7%, Marco Rubio 7%, Jeb Bush 6%, Mike Huckabee 4%, Bobby Jindal 2%, Chris Christie 2%, Rand Paul 2%, Rick Perry 1%, John Kasich 1%, Jim Gilmore 1%, Rick Santorum 1%, George Pataki 0%, Lindsey Graham 0% 
Marquette University^{[658]}
Margin of error: ± 5.6%

April 7–10, 2015  Scott Walker 40% 
Rand Paul 10.3% 
Jeb Bush 7.9% 
Ted Cruz 6%, Chris Christie 5.8%, Mike Huckabee 5.1%, Ben Carson 5%, Marco Rubio 3.8%, Bobby Jindal 2.3%, Rick Santorum 1.9%, Carly Fiorina 0.5%, Rick Perry 0.5%, Someone else 1.7%, Don't know 8.9% 
Public Policy Polling^{[659]}
Margin of error: ± 4.6%

March 6–8, 2015  Scott Walker 53% 
Ben Carson 12% 
Jeb Bush 8% 
Rand Paul 6%, Marco Rubio 6%, Chris Christie 4%, Mike Huckabee 3%, Ted Cruz 2%, Rick Perry 1%, Undecided 5% 
Public Policy Polling^{[660]}
Margin of error: ± 4.3%

April 17–20, 2014  Paul Ryan 25% 
Scott Walker 21% 
Chris Christie 8% 
Mike Huckabee 8%, Rand Paul 8%, Ted Cruz 7%, Jeb Bush 6%, Marco Rubio 6%, Bobby Jindal 3%, Someone else/Not sure 8% 
Magellan Strategies^{[661]}
Margin of error: ± ?

April 14–15, 2014  Scott Walker 37% 
Rand Paul 12% 
Ted Cruz 9% 
Mike Huckabee 9%, Jeb Bush 8%, Marco Rubio 8%, Chris Christie 4%, John Kasich 1%, Undecided 12% 
Marquette University Law School^{[662]}
Margin of error: ± 5%

October 21–27, 2013  Scott Walker 28.9% 
Paul Ryan 24.6% 
Marco Rubio 9.3% 
Chris Christie 8.6%, Rand Paul 8.4%, Ted Cruz 4.3%, Jeb Bush 2.4%, Someone else 4.2%, Don't know 8.9% 
Public Policy Polling^{[663]}
Margin of error: ± 4.6%

September 13–16, 2013  Paul Ryan 27% 
Scott Walker 14% 
Chris Christie 12% 
Marco Rubio 10%, Ted Cruz 9%, Jeb Bush 8%, Rand Paul 8%, Bobby Jindal 3%, Rick Santorum 3%, Someone else/Not sure 5% 
Paul Ryan 33% 
Chris Christie 14% 
Jeb Bush 11% 
Rand Paul 11%, Ted Cruz 10%, Marco Rubio 9%, Rick Santorum 6%, Bobby Jindal 3%, Someone else/Not sure 5%  
Scott Walker 37% 
Chris Christie 13% 
Jeb Bush 11% 
Ted Cruz 10%, Rand Paul 10%, Marco Rubio 9%, Rick Santorum 4%, Bobby Jindal 2%, Someone else/Not sure 3%  
Paul Ryan 47% 
Scott Walker 38% 
Not sure 15%  
Marquette University Law School^{[664]}
Margin of error: ± 5.8%

May 6–9, 2013  Paul Ryan 27.1% 
Marco Rubio 21.2% 
Scott Walker 16.1% 
Chris Christie 10.6%, Rand Paul 6.9%, Jeb Bush 4.6%, Bobby Jindal 0.8%, Someone Else 1.6%, Don't Know 10.5% 
Public Policy Polling^{[135]}
Margin of error: ± 3.8%

February 21–24, 2013  Paul Ryan 35% 
Marco Rubio 22% 
Chris Christie 10% 
Rand Paul 8%, Mike Huckabee 7%, Jeb Bush 5%, Bobby Jindal 3%, Susana Martinez 1%, Rick Perry 1%, Someone Else/Undecided 8% 
Scott Walker 33% 
Marco Rubio 27% 
Chris Christie 10% 
Mike Huckabee 7%, Rand Paul 6%, Jeb Bush 5%, Bobby Jindal 3%, Susana Martinez 2%, Rick Perry 0%, Someone Else/Undecided 8% 
Poll source  Date  1st  2nd  3rd  Other 

Convention results^{[665]}  March 12, 2016  Ted Cruz 66.3% 
Marco Rubio 19.5% 
Donald Trump 7.2% 
John Kasich 0.0%, Uncommitted 7.0%, Other 0.0% 
Public Policy Polling^{[666]}
Margin of error: ±3.5%

July 19–21, 2013  Rand Paul 19% 
Chris Christie 14% 
Jeb Bush 13% 
Paul Ryan 11%, Ted Cruz 9%, Marco Rubio 9%, Rick Santorum 4%, Bobby Jindal 3%, Susana Martinez 1%, Other/Undecided 18% 
Harper Polling^{[667]}
Margin of error: ±4.77%

July 17–18, 2013  Paul Ryan 15% 
Rand Paul 12% 
Jeb Bush 10% 
Chris Christie 10%, Marco Rubio 10%, Ted Cruz 5%, Rick Santorum 3%, Bobby Jindal 2%, Scott Walker 1%, Undecided 33% 
General election polling
Democratic primary polling
Republican primary polling