| Year | Age | State | Party | Office | District | Stage | Pos | Votes | % |
|---|---|---|---|---|---|---|---|---|---|
| 1992 | MD | R | U.S. House | District 03 | Primary | 6 | 1,013 | 6.7% | |
| 2006 | MD | D | U.S. Senate Class 1 | Primary | 17 | 1,832 | 0.3% | ||
| 2008 | MD | D | U.S. House | District 01 | Primary | 4 | 8,753 | 12.3% | |
| 2016 | MD | D | U.S. House | District 01 | Primary | 1 | 29,729 | 51.0% | |
| 2016 | MD | D | U.S. House | District 01 | General | 2 | 103,622 | 28.6% | |
| 2022 | MD | R | Governor | Primary | 4 | 5,075 | 1.7% | ||
|
Age: Age as of July 1 of the year pertaining to this election. |