| Year | Age | State | Party | Office | District | Stage | Pos | Votes | % |
|---|---|---|---|---|---|---|---|---|---|
| 1970 | MD | D | State Senate | District 003 | Primary | 3 | 8,123 | 19.9% | |
| 1972 | MD | D | U.S. House | District 08 | Primary | 2 | 11,177 | 21.2% | |
| 1974 | MD | D | U.S. House | District 08 | Primary | 3 | 4,457 | 8.8% | |
| 1976 | MD | I | U.S. House | District 08 | General | 3 | 26,035 | 11.0% | |
| 1978 | MD | R | State House | District 15B | Primary | 1 | 1,817 | 35.7% | |
| 1978 | MD | R | State House | District 15B | General | 2 | 10,441 | 26.8% | |
| 1980 | MD | R | U.S. House | District 08 | Primary | 3 | 7,350 | 19.2% | |
| 1982 | MD | R | State House | District 015 | Primary | 2 | 3,346 | 24.9% | |
| 1982 | MD | R | State House | District 015 | General | 5 | 14,191 | 16.4% | |
| 1984 | MD | R | U.S. House | District 06 | Primary | 1 | 9,810 | 84.8% | |
| 1984 | MD | R | U.S. House | District 06 | General | 2 | 66,056 | 34.9% | |
| 1986 | MD | R | State Senate | District 015 | General | 2 | 11,908 | 36.6% | |
| 1994 | MD | R | State House | District 015 | Primary | 4 | 2,456 | 15.3% | |
| 2000 | MD | R | U.S. Senate Class 1 | Primary | 4 | 46,995 | 15.2% | ||
| 2002 | MD | R | State Senate | District 039 | General | 2 | 9,689 | 33.7% | |
| 2004 | MD | R | U.S. House | District 08 | Primary | 2 | 4,255 | 27.7% | |
| 2012 | MD | R | U.S. House | District 06 | Primary | 5 | 2,854 | 7.1% | |
| 2014 | MD | R | State Senate | District 015 | Primary | 1 | 1,799 | 100.0% | |
| 2014 | MD | R | State Senate | District 015 | General | 2 | 13,028 | 39.5% | |
| 2016 | MD | R | U.S. House | District 06 | Primary | 4 | 7,014 | 11.4% | |
| 2022 | MD | R | Governor | Primary | 3 | 8,268 | 2.8% | ||
| 2024 | MD | R | U.S. Senate Class 1 | Primary | 2 | 79,517 | 27.8% | ||
|
Age: Age as of July 1 of the year pertaining to this election. |