Louisiana was admitted to the Union on April 30, 1812, and elects senators to Class 2 and Class 3. Its current senators are Republicans Bill Cassidy and John Kennedy. Russell Long was the state's longest serving senator, served 1948–1987.
Class 2 Class 2 U.S. senators belong to the electoral cycle that has recently been contested in 2002, 2008, 2014, and 2020. The next election will be in 2026. |
C |
Class 3 Class 3 U.S. senators belong to the electoral cycle that has recently been contested in 2004, 2010, 2016, and 2022. The next election will be in 2028. | ||||||||||
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# | Senator | Party | Dates in office | Electoral history | T | T | Electoral history | Dates in office | Party | Senator | # | |
Vacant | Apr 30, 1812 – Sep 3, 1812 |
Louisiana did not elect its senators until four months after statehood. | 1 | 12th | 1 | Louisiana did not elect its senators until four months after statehood. | Apr 30, 1812 – Sep 3, 1812 |
Vacant | ||||
1 | ![]() Jean Noël Destréhan |
Democratic- Republican |
Sep 3, 1812 – Oct 1, 1812 |
Resigned | Elected in 1812. | Sep 3, 1812 – Mar 3, 1813 |
Democratic- Republican |
Allan B. Magruder | 1 | |||
Vacant | Oct 1, 1812 – Oct 8, 1812 |
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2 | ![]() Thomas Posey |
Democratic- Republican |
Oct 8, 1812 – Feb 4, 1813 |
Appointed to continue Destréhan's term.Lost election to finish Destréhan's term. | ||||||||
3 | ![]() James Brown |
Democratic- Republican |
Feb 5, 1813 – Mar 3, 1817 |
Elected to finish Destréhan's term.Lost election to full term. | ||||||||
13th | 2 | Elected in 1813 Retired. |
Mar 4, 1813 – Mar 3, 1819 |
Democratic- Republican |
Eligius Fromentin | 2 | ||||||
14th | ||||||||||||
4 | ![]() William C. C. Claiborne |
Democratic- Republican |
Mar 4, 1817 – Nov 23, 1817 |
Elected in 1817.Died. | 2 | 15th | ||||||
Vacant | Nov 23, 1817 – Jan 12, 1818 |
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5 | ![]() Henry Johnson |
Democratic- Republican |
Jan 12, 1818 – May 27, 1824 |
Elected to finish Claiborne's term. | ||||||||
16th | 3 | Elected in 1819.Resigned to become U.S. Minister to France. | Mar 4, 1819 – Dec 10, 1823 |
Democratic- Republican |
![]() James Brown |
3 | ||||||
17th | ||||||||||||
Elected to full term in 1823.Resigned to become Governor of Louisiana. | 3 | 18th | ||||||||||
Dec 10, 1823 – Jan 15, 1824 |
Vacant | |||||||||||
Elected to finish Brown's term. | Jan 15, 1824 – May 19, 1833 |
Democratic- Republican |
![]() Josiah S. Johnston |
4 | ||||||||
Vacant | May 27, 1824 – Nov 19, 1824 |
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6 | ![]() Charles D. J. Bouligny |
Democratic- Republican |
Nov 19, 1824 – Mar 3, 1829 |
Elected to finish Johnson's term. | ||||||||
National Republican |
19th | 4 | Elected to full term in 1825. | National Republican | ||||||||
20th | ||||||||||||
7 | ![]() Edward Livingston |
Jacksonian | Mar 4, 1829 – May 24, 1831 |
Elected in 1829.[1]Resigned to become U.S. Secretary of State. | 4 | 21st | ||||||
22nd | 5 | Re-elected in 1831.Died. | ||||||||||
Vacant | May 24, 1831 – Nov 15, 1831 |
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8 | ![]() George A. Waggaman |
National Republican |
Nov 15, 1831 – Mar 3, 1835 |
Elected to finish Livingston's term. | ||||||||
23rd | ||||||||||||
May 19, 1833 – Dec 19, 1833 |
Vacant | |||||||||||
Elected to finish Johnston's term.Resigned due to ill health. | Dec 19, 1833 – Jan 5, 1837 |
National Republican |
![]() Alexander Porter |
5 | ||||||||
Vacant | Mar 4, 1835 – Jan 13, 1836 |
Charles Gayarré (J) was elected in 1835, but resigned due to ill health. | 5 | 24th | ||||||||
9 | ![]() Robert C. Nicholas |
Jacksonian | Jan 13, 1836 – Mar 3, 1841 |
Elected to finish Gauarré's term.[data unknown/missing] | ||||||||
Jan 5, 1837 – Jan 12, 1837 |
Vacant | |||||||||||
Elected to finish Porter's term. | Jan 12, 1837 – Mar 1, 1842 |
Jacksonian | ![]() Alexandre Mouton |
6 | ||||||||
Democratic | 25th | 6 | Re-elected in 1837.Resigned. | Democratic | ||||||||
26th | ||||||||||||
10 | ![]() Alexander Barrow |
Whig | Mar 4, 1841 – Dec 29, 1846 |
Elected in 1840.Died. | 6 | 27th | ||||||
Mar 1, 1842 – Apr 14, 1842 |
Vacant | |||||||||||
Appointed to finish Mouton's term.Lost election to full term. | Apr 14, 1842 – Mar 3, 1843 |
Whig | ![]() Charles Magill Conrad |
7 | ||||||||
28th | 7 | Elected in 1843, but due to ill health did not take his seat.Died. | Mar 4, 1843 – Jan 13, 1844 |
Whig | ![]() Alexander Porter |
8 | ||||||
Jan 13, 1844 – Feb 12, 1844 |
Vacant | |||||||||||
Elected to finish Porter's termLost election to full term in 1849. | Feb 12, 1844 – Mar 3, 1849 |
Whig | ![]() Henry Johnson |
9 | ||||||||
29th | ||||||||||||
Vacant | Dec 29, 1846 – Jan 21, 1847 |
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11 | ![]() Pierre Soulé |
Democratic | Jan 21, 1847 – Mar 3, 1847 |
Elected to finish Barrow's term.[data unknown/missing] | ||||||||
12 | ![]() Solomon W. Downs |
Democratic | Mar 4, 1847 – Mar 3, 1853 |
Elected in 1847.Lost re-election. | 7 | 30th | ||||||
31st | 8 | Elected in 1848.Resigned to become U.S. Minister to Spain. | Mar 3, 1849 – Apr 11, 1853 |
Democratic | ![]() Pierre Soulé |
10 | ||||||
32nd | ||||||||||||
13 | ![]() Judah P. Benjamin |
Whig | Mar 4, 1853 – Feb 4, 1861 |
Elected in 1852. | 8 | 33rd | ||||||
Apr 11, 1853 – Dec 5, 1853 |
Vacant | |||||||||||
Elected to finish Soulé's term. | Dec 5, 1853 – Feb 4, 1861 |
Democratic | ![]() John Slidell |
11 | ||||||||
34th | 9 | Re-election year unknown.Resigned. | ||||||||||
Democratic | 35th | |||||||||||
Re-elected in 1859.Withdrew. | 9 | 36th | ||||||||||
Vacant | Feb 4, 1861 – Jul 8, 1868 |
Civil War and Reconstruction | Civil War and Reconstruction | Feb 4, 1861 – Jul 9, 1868 |
Vacant | |||||||
37th | 10 | |||||||||||
38th | ||||||||||||
10 | 39th | |||||||||||
40th | 11 | |||||||||||
14 | ![]() John S. Harris |
Republican | Jul 8, 1868 – Mar 3, 1871 |
Elected to finish incomplete term in 1868.[data unknown/missing]. | ||||||||
Elected to finish incomplete term.Resigned to become Governor of Louisiana. | Jul 9, 1868 – Nov 1, 1872 |
Republican | ![]() William Pitt Kellogg |
12 | ||||||||
41st | ||||||||||||
15 | ![]() Joseph R. West |
Republican | Mar 4, 1871 – Mar 3, 1877 |
Election year unknown.Retired. | 11 | 42nd | ||||||
Senate declined to seat rival claimants William L. McMillen and P. B. S. Pinchback[2] | Nov 1, 1872 – Jan 12, 1876 |
Vacant | ||||||||||
43rd | 12 | |||||||||||
44th | ||||||||||||
Elected to finish incomplete term in 1876.Lost re-election. | Jan 12, 1876 – Mar 3, 1879 |
Democratic | ![]() James B. Eustis |
13 | ||||||||
16 | ![]() William Pitt Kellogg |
Republican | Mar 4, 1877 – Mar 3, 1883 |
Elected in 1876.Retired to run for U.S. House. | 12 | 45th | ||||||
46th | 13 | Elected in 1879.Lost re-election. | Mar 4, 1879 – Mar 3, 1885 |
Democratic | ![]() Benjamin F. Jonas |
14 | ||||||
47th | ||||||||||||
17 | ![]() Randall L. Gibson |
Democratic | Mar 4, 1883 – Dec 15, 1892 |
Elected in 1882. | 13 | 48th | ||||||
49th | 14 | Election year unknown.Retired. | Mar 4, 1885 – Mar 3, 1891 |
Democratic | ![]() James B. Eustis |
15 | ||||||
50th | ||||||||||||
Re-elected in 1889.Died. | 14 | 51st | ||||||||||
52nd | 15 | Elected in 1891.Resigned to become U.S. Supreme Court Justice. | Mar 4, 1891 – Mar 12, 1894 |
Democratic | ![]() Edward Douglass White |
16 | ||||||
Vacant | Dec 15, 1892 – Dec 31, 1892 |
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18 | ![]() Donelson Caffery |
Democratic | Dec 31, 1892 – Mar 3, 1901 |
Appointed to continue Gibson's term.Elected in 1894 to finish Gibson's term.[3] | ||||||||
53rd | ||||||||||||
Appointed to continue White's term.Elected in 1894 to finish White's term.[4]Retired. | Mar 12, 1894 – Mar 3, 1897 |
Democratic | ![]() Newton C. Blanchard |
17 | ||||||||
Elected in 1894 to the next term, before election to finish Gibson's term.Retired. | 15 | 54th | ||||||||||
55th | 16 | Elected in 1896.[5] | Mar 4, 1897 – Jun 28, 1910 |
Democratic | ![]() Samuel D. McEnery |
18 | ||||||
56th | ||||||||||||
19 | ![]() Murphy J. Foster |
Democratic | Mar 4, 1901 – Mar 3, 1913 |
Elected in 1900.[6] | 16 | 57th | ||||||
58th | 17 | Re-elected early in 1900.[6] | ||||||||||
59th | ||||||||||||
Re-elected early in 1904.[7]Lost renomination. | 17 | 60th | ||||||||||
61st | 18 | Re-elected in 1908.[8]Died. | ||||||||||
Jun 28, 1910 – Dec 7, 1910 |
Vacant | |||||||||||
Elected to finish McEnery's term.[4]Retired. | Dec 7, 1910 – Mar 3, 1915 |
Democratic | ![]() John Thornton |
19 | ||||||||
62nd | ||||||||||||
20 | ![]() Joseph E. Ransdell |
Democratic | Mar 4, 1913 – Mar 3, 1931 |
Elected in 1912. | 18 | 63rd | ||||||
64th | 19 | Elected early in 1912.Died. | Mar 4, 1915 – Apr 12, 1918 |
Democratic | ![]() Robert F. Broussard |
20 | ||||||
65th | ||||||||||||
Apr 12, 1918 – Apr 22, 1918 |
Vacant | |||||||||||
Appointed to continue Broussard's term.Retired when elected successor qualified. | Apr 22, 1918 – Nov 5, 1918 |
Democratic | ![]() Walter Guion |
21 | ||||||||
Elected to finish Broussard's term.Retired. | Nov 6, 1918 – Mar 3, 1921 |
Democratic | ![]() Edward James Gay |
22 | ||||||||
Re-elected in 1918. | 19 | 66th | ||||||||||
67th | 20 | Elected in 1920. | Mar 4, 1921 – Mar 3, 1933 |
Democratic | ![]() Edwin S. Broussard |
23 | ||||||
68th | ||||||||||||
Re-elected in 1924.Lost renomination. | 20 | 69th | ||||||||||
70th | 21 | Re-elected in 1926.Lost renomination. | ||||||||||
71st | ||||||||||||
21 | ![]() Huey Long |
Democratic | Mar 4, 1931 – Sep 10, 1935 |
Elected in 1930, but continued to serve as Louisiana governor until Jan 25, 1932.Assassinated. | 21 | 72nd | ||||||
73rd | 22 | Elected in 1932. | Mar 4, 1933 – May 14, 1948 |
Democratic | ![]() John Overton |
24 | ||||||
74th | ||||||||||||
Vacant | Sep 10, 1935 – Jan 31, 1936 |
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22 | ![]() Rose Long |
Democratic | Jan 31, 1936 – Jan 2, 1937 |
Appointed to continue her husband's term.Elected in 1936 to finish her husband's term.[3]Retired. | ||||||||
23 | ![]() Allen J. Ellender |
Democratic | Jan 3, 1937 – July 27, 1972 |
Elected in 1936. | 22 | 75th | ||||||
76th | 23 | Re-elected in 1938. | ||||||||||
77th | ||||||||||||
Re-elected in 1942. | 23 | 78th | ||||||||||
79th | 24 | Re-elected in 1944.Died. | ||||||||||
80th | ||||||||||||
May 14, 1948 – May 18, 1948 |
Vacant | |||||||||||
Appointed to continue Overton's term.Retired when elected successor qualified. | May 18, 1948 – Dec 30, 1948 |
Democratic | ![]() William C. Feazel |
25 | ||||||||
Elected to finish Overton's term. | Dec 31, 1948 – Jan 3, 1987 |
Democratic | ![]() Russell Long |
26 | ||||||||
Re-elected in 1948. | 24 | 81st | ||||||||||
82nd | 25 | Re-elected in 1950. | ||||||||||
83rd | ||||||||||||
Re-elected in 1954. | 25 | 84th | ||||||||||
85th | 26 | Re-elected in 1956. | ||||||||||
86th | ||||||||||||
Re-elected in 1960. | 26 | 87th | ||||||||||
88th | 27 | Re-elected in 1962. | ||||||||||
89th | ||||||||||||
Re-elected in 1966.Died. | 27 | 90th | ||||||||||
91st | 28 | Re-elected in 1968. | ||||||||||
92nd | ||||||||||||
Vacant | Jul 27, 1972 – Aug 1, 1972 |
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24 | ![]() Elaine Edwards |
Democratic | Aug 1, 1972 – Nov 13, 1972 |
Appointed by her husband to continue Ellender's term.Retired when successor qualified and resigned early. | ||||||||
25 | ![]() J. Bennett Johnston |
Democratic | Nov 14, 1972 – Jan 3, 1997 |
Appointed to finish Ellender's term, having already been elected to the next term. | ||||||||
Elected in 1972. | 28 | 93rd | ||||||||||
94th | 29 | Re-elected in 1974. | ||||||||||
95th | ||||||||||||
Re-elected in 1978. | 29 | 96th | ||||||||||
97th | 30 | Re-elected in 1980.Retired. | ||||||||||
98th | ||||||||||||
Re-elected in 1984. | 30 | 99th | ||||||||||
100th | 31 | Elected in 1986. | Jan 3, 1987 – Jan 3, 2005 |
Democratic | ![]() John Breaux |
27 | ||||||
101st | ||||||||||||
Re-elected in 1990.Retired. | 31 | 102nd | ||||||||||
103rd | 32 | Re-elected in 1992. | ||||||||||
104th | ||||||||||||
26 | ![]() Mary Landrieu |
Democratic | Jan 3, 1997 – Jan 3, 2015 |
Elected in 1996. | 32 | 105th | ||||||
106th | 33 | Re-elected in 1998.Retired. | ||||||||||
107th | ||||||||||||
Re-elected in 2002 in runoff election. | 33 | 108th | ||||||||||
109th | 34 | Elected in 2004. | Jan 3, 2005 – Jan 3, 2017 |
Republican | ![]() David Vitter |
28 | ||||||
110th | ||||||||||||
Re-elected in 2008.Lost re-election. | 34 | 111th | ||||||||||
112th | 35 | Re-elected in 2010.Retired.[9] | ||||||||||
113th | ||||||||||||
27 | ![]() Bill Cassidy |
Republican | Jan 3, 2015 – Present |
Elected in 2014 in runoff election. | 35 | 114th | ||||||
115th | 36 | Elected in 2016 in runoff election. | Jan 3, 2017 – Present |
Republican | ![]() John Kennedy |
29 | ||||||
116th | ||||||||||||
Re-elected in 2020. | 36 | 117th | ||||||||||
118th | 37 | Re-elected in 2022. | ||||||||||
119th | ||||||||||||
To be determined in the 2026 election. | 37 | 120th | ||||||||||
121st | 38 | To be determined in the 2028 election. | ||||||||||
# | Senator | Party | Years in office | Electoral history | T | T | Electoral history | Years in office | Party | Senator | # | |
Class 2 | Class 3 |