Elections / 2004 · Senate · WI
The Democratic candidate won Wisconsin's Senate seat D+11.2.
Wisconsin, 2004. Party-level statewide totals below — candidate names join when the raw MEDSL store is re-fetched with name columns. The presidential race shared this ballot.
Wisconsin — 2004 Senate result
Source: MIT Election Data + Science Lab, 1976–2024 Senate returns (party-classified by literal ballot party).
Democratic (D)
1,632,697
55.4%
Republican (R)
1,301,183
44.1%
All others
15,029
0.5%
Margin
D+11.2
Wisconsin's Senate margins
Every contest in our store, 1976–2024
| Year | Margin (D minus R) |
|---|---|
| 1976 | +45.6% |
| 1980 | −1.9% |
| 1982 | +29.5% |
| 1986 | −3.5% |
| 1988 | +4.5% |
| 1992 | +6.6% |
| 1994 | +17.6% |
| 1998 | +2.1% |
| 2000 | +24.5% |
| 2004 | +11.2% |
| 2006 | +37.8% |
| 2010 | −4.8% |
| 2012 | +5.5% |
| 2016 | −3.4% |
| 2018 | +10.8% |
| 2022 | −1.0% |
| 2024 | +0.8% |