One of two U.S. Senate seats representing the state of Illinois. 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 | Tammy Duckworth D | 56.8% | 4,098,896 | |
| 2020 | Richard J. Durbin D | 54.9% | 5,968,883 | |
| 2016 | Tammy Duckworth D | 54.9% | 5,491,239 | |
| 2014 | Richard J. Durbin D | 53.5% | 3,603,475 | |
| 2008 | Richard J. Durbin D | 67.8% | 5,329,883 | |
| 2004 | Barack Obama D | 70.0% | 5,138,563 | |
| 2002 | Richard J. Durbin D | 60.3% | 3,486,851 | |
| 1998 | Peter G. Fitzgerald R | 50.3% | 3,394,521 | |
| 1996 | Richard J. Durbin D | 56.1% | 4,246,494 | |
| 1992 | Carol Moseley-Braun D | 53.3% | 4,939,530 | |
| 1990 | Paul Simon D | 65.1% | 3,251,005 | |
| 1986 | Alan J. Dixon D | 65.1% | 3,122,883 | |
| 1984 | Paul Simon D | 50.1% | 4,787,062 | |
| 1980 | Alan J. Dixon D | 56.0% | 4,579,933 | |
| 1978 | Charles H. Perey R | 53.3% | 3,184,605 |