Elections / 2010 · Senate · IL
The Republican candidate won Illinois's Senate seat R+1.6.
Illinois, 2010. Candidate results and statewide totals below.
Illinois — 2010 Senate result
Source: MIT Election Data + Science Lab, 1976–2024 Senate returns (party-classified by literal ballot party).
Democratic (D)
1,719,478
46.4%
Republican (R)
1,778,698
48.0%
All others
205,194
5.5%
Margin
R+1.6
Candidates
Statewide candidate totals — MIT Election Data + Science Lab, 2010 Senate returns.
| Candidate | Party | Votes | Share |
|---|---|---|---|
| Mark Steven Kirk | RRepublican | 1,778,698 | 48.0% |
| Alexander "Alexi" Giannoulias | DDemocrat | 1,719,478 | 46.4% |
| Lealan M. Jones | OGreen | 117,914 | 3.2% |
| Mike Labno | OLibertarian | 87,247 | 2.4% |
| Corey Dabney | OOther | 33 | 0.0% |
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% |