| Year | Age | State | Party | Office | District | Stage | Pos | Votes | % |
|---|---|---|---|---|---|---|---|---|---|
| 1966 | MD | D | State Senate | District 009 | General | 1 | 30,879 | 37.5% | |
| 1968 | MD | D | U.S. House | District 04 | Primary | 2 | 12,990 | 44.9% | |
| 1970 | MD | D | State Senate | District 009 | Primary | 1 | 12,925 | 28.7% | |
| 1970 | MD | D | State Senate | District 009 | General | 1 | 26,524 | 51.8% | |
| 1974 | MD | D | State Senate | District 043 | Primary | 1 | 6,911 | 76.9% | |
| 1974 | MD | D | State Senate | District 043 | General | 1 | 13,425 | 100.0% | |
| 1976 | MD | D | U.S. House | District 03 | Primary | 2 | 14,994 | 17.8% | |
| 1978 | MD | D | State Senate | District 043 | Primary | 1 | 8,658 | 75.3% | |
| 1978 | MD | D | State Senate | District 043 | General | 1 | 15,431 | 100.0% | |
| 1982 | MD | D | Lt. Governor | Primary | 1 | 0 | 0.0% | ||
| 1982 | MD | D | Lt. Governor | General | 1 | 0 | 0.0% | ||
| 1986 | MD | D | Attorney General | General | 1 | 768,170 | 100.0% | ||
| 1990 | MD | D | Attorney General | General | 1 | 653,087 | 64.7% | ||
| 1994 | MD | D | Attorney General | Primary | 1 | 251,989 | 53.4% | ||
| 1994 | MD | D | Attorney General | General | 1 | 703,169 | 53.6% | ||
| 1998 | MD | D | Attorney General | Primary | 1 | 319,639 | 100.0% | ||
| 1998 | MD | D | Attorney General | General | 1 | 922,655 | 63.5% | ||
| 2002 | MD | D | Attorney General | Primary | 1 | 459,180 | 100.0% | ||
| 2002 | MD | D | Attorney General | General | 1 | 1,064,112 | 65.2% | ||
|
Age: Age as of July 1 of the year pertaining to this election. |