One of two U.S. Senate seats representing the state of Louisiana. Senators serve six-year terms and represent the entire state population.


There is no data about this race yet. General election on Nov 7, 2028.
| Year | Winner | Result | Runner-Up | Total Votes |
|---|---|---|---|---|
| 2022 | John Kennedy R | 61.6% | 1,383,290 | |
| 2020 | \Bill\" Cassidy" R | 59.3% | 2,071,543 | |
| 2016 | John Kennedy R | 26.8% | 1,997,218 | |
| 2014 | Bill Cassidy R | 48.6% | 3,523,183 | |
| 2010 | David Vitter R | 56.6% | 1,264,994 | |
| 2008 | Mary L. Landrieu D | 52.1% | 1,896,574 | |
| 2004 | David Vitter R | 51.0% | 1,848,056 | |
| 2002 | Mary L. Landrieu D | 40.7% | 1,568,776 | |
| 1998 | John B. Breaux D | 64.0% | 969,165 | |
| 1996 | Mary L. Landrieu D | 50.2% | 1,700,102 | |
| 1992 | John B. Breaux D | 100.0% | 1 | |
| 1990 | J. Bennett Johnston D | 100.0% | 1 | |
| 1986 | John B. Breaux D | 52.8% | 1,369,897 | |
| 1984 | J. Bennett Johnston Jr. D | 100.0% | 1 | |
| 1980 | Russell B. Long D | 57.6% | 841,013 |