Elections / 1984 · Senate · IL
The Democratic candidate won Illinois's Senate seat D+1.9.
Illinois, 1984. Candidate results and statewide totals below. The presidential race shared this ballot.
Illinois — 1984 Senate result
Source: MIT Election Data + Science Lab, 1976–2024 Senate returns (party-classified by literal ballot party).
Democratic (D)
2,397,165
50.1%
Republican (R)
2,308,039
48.2%
All others
82,131
1.7%
Margin
D+1.9
Candidates
Statewide candidate totals — MIT Election Data + Science Lab, 1984 Senate returns.
| Candidate | Party | Votes | Share |
|---|---|---|---|
| Paul Simon | DDemocrat | 2,397,165 | 50.1% |
| Charles H. Percy | RRepublican | 2,308,039 | 48.2% |
| Steven I. Givot | OLibertarian | 59,777 | 1.2% |
| Marjorie H. Pries | OCitizens | 12,366 | 0.3% |
| Nelson Gonzalez | OSocialist Workers | 4,913 | 0.1% |
| Ishmael Flory | OCommunist | 4,802 | 0.1% |
| Other | OOther | 273 | 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% |