| Year | Age | State | Party | Office | District | Stage | Pos | Votes | % |
|---|---|---|---|---|---|---|---|---|---|
| 2000 | MT | D | U.S. Senate Class 1 | Primary | 1 | 59,189 | 66.2% | ||
| 2000 | MT | D | U.S. Senate Class 1 | General | 2 | 194,430 | 47.2% | ||
| 2004 | MT | D | Governor | Primary | 1 | 68,738 | 72.5% | ||
| 2004 | MT | D | Governor | General | 1 | 225,016 | 50.4% | ||
| 2008 | MT | D | Governor | Primary | 1 | 159,820 | 91.3% | ||
| 2008 | MT | D | Governor | General | 1 | 319,625 | 65.4% | ||
|
Age: Age as of July 1 of the year pertaining to this election. |