| Year | Age | State | Party | Office | District | Stage | Pos | Votes | % |
|---|---|---|---|---|---|---|---|---|---|
| 1970 | IA | D | Governor | Primary | 2 | 46,524 | 44.8% | ||
| 1972 | IA | D | Lt. Governor | Primary | 1 | 119,256 | 100.0% | ||
| 1972 | IA | D | Lt. Governor | General | 2 | 551,071 | 47.7% | ||
| 1974 | IA | D | Governor | Primary | 2 | 52,420 | 39.3% | ||
|
Age: Age as of July 1 of the year pertaining to this election. |