| Year | Age | State | Party | Office | District | Stage | Pos | Votes | % |
|---|---|---|---|---|---|---|---|---|---|
| 1964 | MD | D | U.S. House | District 05 | Primary | 2 | 14,366 | 16.3% | |
| 1966 | MD | D | State Senate | District 04A | General | 1 | 13,490 | 56.4% | |
| 1970 | MD | D | State Senate | District 004 | Primary | 1 | 10,544 | 70.3% | |
| 1970 | MD | D | State Senate | District 004 | General | 1 | 22,382 | 64.5% | |
| 1972 | MD | D | U.S. House | District 05 | Primary | 1 | 20,642 | 49.5% | |
| 1972 | MD | D | U.S. House | District 05 | General | 2 | 53,049 | 37.1% | |
| 1974 | MD | D | State Senate | District 024 | General | 1 | 13,486 | 100.0% | |
| 1978 | MD | D | State Senate | District 024 | Primary | 2 | 4,615 | 47.3% | |
| 1978 | MD | D | State Senate | District 024 | General | 1 | 15,072 | 100.0% | |
| 1980 | MD | D | U.S. Senate Class 3 | Primary | 1 | 79,033 | 22.4% | ||
| 1980 | MD | D | U.S. Senate Class 3 | General | 2 | 435,118 | 33.8% | ||
| 1981 | MD | D | U.S. House | District 05 | Special Primary | 3 | 6,190 | 13.3% | |
|
Age: Age as of July 1 of the year pertaining to this election. |