| Year | Age | State | Party | Office | District | Stage | Pos | Votes | % |
|---|---|---|---|---|---|---|---|---|---|
| 1986 | MD | D | U.S. House | District 02 | Primary | 1 | 62,372 | 81.4% | |
| 1986 | MD | D | U.S. House | District 02 | General | 2 | 68,200 | 41.3% | |
| 1994 | MD | D | Lt. Governor | Primary | 1 | 0 | 0.0% | ||
| 1994 | MD | D | Lt. Governor | General | 1 | 0 | 0.0% | ||
| 1998 | MD | D | Lt. Governor | Primary | 1 | 0 | 0.0% | ||
| 1998 | MD | D | Lt. Governor | General | 1 | 0 | 0.0% | ||
| 2002 | MD | D | Governor | Primary | 1 | 434,948 | 80.0% | ||
| 2002 | MD | D | Governor | General | 2 | 813,422 | 47.7% | ||
|
Age: Age as of July 1 of the year pertaining to this election. |