U.S. Senate elections in Louisiana
● In officeBill CassidyRepublicanJohn KennedyRepublican
Elections won
R 6 · D 3137 Senate elections since 1918
Last decided by
43.7 pts2022, John Kennedy over Gary Chambers Jr.
Closest ever
0.34 pts1996, Mary L. Landrieu over Louis Woody Jenkins
Longest streak
30 in a rowDemocratic, 1918–2002
Next election
2026Tuesday, November 3, 2026
Louisiana's U.S. Senate seats are held by Republican Bill Cassidy and Democrat John Kennedy; Kennedy won the most recent race by 43.7 points in 2022. Cassidy has held one seat since 2014 and Kennedy the other since 2016. The 2022 race put Kennedy ahead of Gary Chambers Jr., 43.7 points clear. Across 37 elections since 1918, Republicans have won 6 and Democrats 31. Of those, the closest was 1996, decided by 0.34 points; the widest 1950, by 75.4 points.
John Kennedy R 851,568 · Gary Chambers Jr. D 246,933 · Luke Mixon D 182,887 · Syrita Steib D 31,568 · +9 more
Bill Cassidy R 1,228,908 · Adrian Perkins D 394,049 · Derrick Champ Edwards D 229,814 · Antoine Pierce D 55,710 · +11 more
John Kennedy R 536,191 · Foster Campbell D 347,816 · Charles W. Boustany Jr. R 298,008 · Caroline Fayard D 240,917 · +20 more
Bill Cassidy R 1,712,379 · Mary L. Landrieu D 1,561,210 · Rob Maness R 202,556 · Thomas P. Clements R 14,173 · +4 more
David Vitter R 715,415 · Charlie Melancon D 476,572 · Randall Todd Hayes L 13,957 · Michael Karlton Brown 9,973 · +8 more
Mary L. Landrieu D 988,298 · John Kennedy R 867,177 · Richard M. Fontanesi L 18,590 · Jay Patel 13,729 · +1 more
David Vitter R 943,014 · Christopher John D 542,150 · John Kennedy D 275,821 · Arthur A. Morrell D 47,222 · +3 more
Mary L. Landrieu D 1,212,001 · Suzanne Haik Terrell R 936,148 · John Cooksey R 171,752 · Tony Perkins R 119,776 · +5 more
John B. Breaux D 620,502 · Jim Donelon R 306,616 · Raymond Brown O 12,203 · Sam Houston Melton Jr. D 9,893 · +4 more
Mary L. Landrieu D 852,945 · Louis Woody Jenkins R 847,157
John B. Breaux D 723,586 · W. Henson Moore R 646,311
Russell B. Long D 484,770 · Louis Woody Jenkins D 325,922 · Jerry C. Bardwell R 13,739 · Robert Max Ross R 10,208 · +1 more
J. Bennett Johnston Jr. D 598,987 · John J. McKeithen I 250,161 · Ben C. Toledano R 206,846 · Hall M. Lyons A 28,910
Russell B. Long D 318,838 · Taylor W. O'Hearn R 103,066
Allen J. Ellender D 432,228 · George W. Reese R 109,698
Russell B. Long D 220,907 · Charles S. Gerth R 30,931
John H. Overton D 151,585 · Maurice Clark I 250