| Year | Age | State | Party | Office | District | Stage | Pos | Votes | % |
|---|---|---|---|---|---|---|---|---|---|
| 1962 | MD | D | U.S. Senate Class 3 | Primary | 2 | 100,915 | 28.9% | ||
| 1970 | MD | D | Lt. Governor | General | 1 | 504,167 | 63.6% | ||
| 1974 | MD | D | Lt. Governor | Primary | 1 | 0 | 0.0% | ||
| 1974 | MD | D | Lt. Governor | General | 1 | 0 | 0.0% | ||
| 1978 | MD | D | Governor | Primary | 2 | 194,236 | 33.9% | ||
|
Age: Age as of July 1 of the year pertaining to this election. |