| Year | Age | State | Party | Office | District | Stage | Pos | Votes | % |
|---|---|---|---|---|---|---|---|---|---|
| 1986 | IA | D | Secretary of State | District SOS | Primary | 1 | 50,601 | 47.1% | |
| 1986 | IA | D | Secretary of State | District SOS | General | 1 | 420,487 | 51.0% | |
| 1990 | IA | D | Secretary of State | District SOS | Primary | 1 | 143,221 | 99.8% | |
| 1990 | IA | D | Secretary of State | District SOS | General | 1 | 471,888 | 52.3% | |
| 1992 | IA | D | U.S. House | District 03 | Primary | 1 | 24,298 | 99.5% | |
| 1992 | IA | D | U.S. House | District 03 | General | 2 | 121,063 | 47.1% | |
| 1994 | IA | D | U.S. House | District 03 | Primary | 1 | 20,192 | 78.6% | |
| 1994 | IA | D | U.S. House | District 03 | General | 2 | 79,310 | 41.0% | |
|
Age: Age as of July 1 of the year pertaining to this election. |