| Year | Age | State | Party | Office | District | Stage | Pos | Votes | % |
|---|---|---|---|---|---|---|---|---|---|
| 1966 | MD | D | Governor | Primary | 7 | 4,311 | 0.9% | ||
| 1968 | MD | D | U.S. Senate Class 3 | Primary | 2 | 38,555 | 17.3% | ||
| 1970 | MD | R | U.S. House | District 02 | Primary | 1 | 7,230 | 52.5% | |
| 1970 | MD | R | U.S. House | District 02 | General | 2 | 40,177 | 31.5% | |
| 1974 | MD | R | U.S. Senate Class 3 | Primary | 2 | 25,512 | 24.2% | ||
| 1978 | MD | R | Governor | Primary | 4 | 4,940 | 3.7% | ||
| 1982 | MD | R | Governor | Primary | 2 | 21,165 | 15.7% | ||
| 1984 | MD | R | U.S. House | District 03 | General | 2 | 59,493 | 30.5% | |
| 1986 | MD | R | U.S. House | District 03 | Primary | 1 | 3,655 | 50.4% | |
| 1986 | MD | R | U.S. House | District 03 | General | 2 | 26,452 | 20.9% | |
| 1988 | MD | R | U.S. House | District 03 | Primary | 1 | 3,775 | 37.0% | |
| 1988 | MD | R | U.S. House | District 03 | General | 2 | 49,733 | 27.1% | |
| 1990 | MD | R | Governor | Primary | 2 | 60,065 | 47.3% | ||
| 1992 | MD | R | U.S. Senate Class 3 | Primary | 4 | 12,658 | 6.1% | ||
| 1994 | MD | R | U.S. Senate Class 1 | Primary | 4 | 17,306 | 8.0% | ||
| 1998 | MD | R | U.S. Senate Class 3 | General | 2 | 444,637 | 29.5% | ||
| 2000 | MD | R | U.S. Senate Class 1 | Primary | 3 | 52,052 | 16.8% | ||
| 2002 | MD | R | Governor | Primary | 3 | 8,458 | 3.4% | ||
|
Age: Age as of July 1 of the year pertaining to this election. |