U.S. governors
Incumbent
- Greg Abbott, Texas[2]
- Phil Bryant, Mississippi[3]
- Eddie Calvo, Guam[4]
- Gary Herbert, Utah[5]
- Nikki Haley, South Carolina[6] (previously endorsed Marco Rubio[7])
- Mike Pence, Indiana[8] (eventual running mate of Donald Trump[9])
- Scott Walker, Wisconsin; 2016 presidential candidate[10]
Former
- Rick Perry, Texas; 2012 and 2016 presidential candidate[11]
- Jeb Bush, Florida; 2016 presidential candidate[12]
- Mitt Romney, Massachusetts; Republican nominee for President of the United States in 2012[13][14][15][16] ("Mr. Romney’s vote in Utah, where he owns a house in Holladay, is not an endorsement, his allies stressed. Rather, it is part of his effort to unite the Republican Party around an alternative to Mr. Trump." per The New York Times[14])
- Mark Sanford, South Carolina; also U.S. Representative from South Carolina 1995–2001 and 2013–2019[citation needed]
- Pete Wilson, California[17]
