Elections / 2004 · Senate · IL
The Democratic candidate won Illinois's Senate seat D+42.9.
Illinois, 2004. Candidate results and statewide totals below. The presidential race shared this ballot.
Illinois — 2004 Senate result
Source: MIT Election Data + Science Lab, 1976–2024 Senate returns (party-classified by literal ballot party).
Democratic (D)
3,597,456
70.0%
Republican (R)
1,390,690
27.1%
All others
150,417
2.9%
Margin
D+42.9
Candidates
Statewide candidate totals — MIT Election Data + Science Lab, 2004 Senate returns.
| Candidate | Party | Votes | Share |
|---|---|---|---|
| Barack Obama | DDemocrat | 3,597,456 | 70.0% |
| Alan Keyes | RRepublican | 1,390,690 | 27.1% |
| Albert J. Franzen | OIndependent | 81,164 | 1.6% |
| Jerry Kohn | OLibertarian | 69,253 | 1.3% |
Illinois's Senate margins
Every contest in our store, 1978–2022
| Year | Margin (D minus R) |
|---|---|
| 1978 | −7.9% |
| 1980 | +13.5% |
| 1984 | +1.9% |
| 1986 | +31.4% |
| 1990 | +30.1% |
| 1992 | +10.2% |
| 1996 | +15.4% |
| 1998 | −2.9% |
| 2002 | +22.3% |
| 2004 | +42.9% |
| 2008 | +39.3% |
| 2010 | −1.6% |
| 2014 | +10.9% |
| 2016 | +15.1% |
| 2020 | +16.1% |
| 2022 | +15.3% |