| Year | Age | State | Party | Office | District | Stage | Pos | Votes | % |
|---|---|---|---|---|---|---|---|---|---|
| 1988 | MD | D | U.S. House | District 04 | Primary | 3 | 1,877 | 4.1% | |
| 1996 | MD | D | U.S. House | District 01 | Primary | 4 | 4,682 | 14.4% | |
| 1998 | MD | D | U.S. House | District 01 | Primary | 3 | 9,813 | 21.9% | |
| 2000 | MD | D | U.S. House | District 01 | Primary | 3 | 10,253 | 22.1% | |
| 2002 | MD | D | U.S. House | District 03 | Primary | 2 | 6,986 | 10.0% | |
| 2004 | MD | D | U.S. House | District 03 | Primary | 2 | 6,163 | 10.2% | |
| 2006 | MD | D | U.S. House | District 03 | Primary | 8 | 390 | 0.5% | |
| 2008 | MD | D | U.S. House | District 03 | Primary | 2 | 10,614 | 10.9% | |
| 2010 | MD | D | U.S. House | District 03 | Primary | 5 | 1,307 | 2.0% | |
| 2016 | MD | D | U.S. House | District 03 | Primary | 2 | 14,917 | 12.8% | |
| 2018 | MD | D | U.S. House | District 03 | Primary | 4 | 2,300 | 2.9% | |
| 2020 | MD | D | U.S. House | District 03 | Primary | 3 | 5,571 | 4.2% | |
|
Age: Age as of July 1 of the year pertaining to this election. |