| Year | Age | State | Party | Office | District | Stage | Pos | Votes | % |
|---|---|---|---|---|---|---|---|---|---|
| 1956 | MD | D | U.S. House | District 02 | Primary | 2 | 5,852 | 12.1% | |
| 1966 | MD | D | U.S. House | District 06 | General | 2 | 29,637 | 29.1% | |
| 1968 | MD | D | U.S. Senate Class 3 | Primary | 3 | 19,829 | 8.9% | ||
| 1970 | MD | D | U.S. Senate Class 1 | Primary | 3 | 33,361 | 7.2% | ||
| 1974 | MD | D | U.S. Senate Class 3 | Primary | 3 | 32,068 | 9.9% | ||
| 1976 | MD | D | U.S. Senate Class 1 | Primary | 7 | 5,904 | 1.1% | ||
| 1978 | MD | D | Attorney General | Primary | 4 | 54,101 | 12.3% | ||
| 1994 | MD | D | Governor | Primary | 6 | 5,369 | 1.0% | ||
|
Age: Age as of July 1 of the year pertaining to this election. |