| Year | Age | State | Party | Office | District | Stage | Pos | Votes | % |
|---|---|---|---|---|---|---|---|---|---|
| 1964 | IA | D | Treasurer | Primary | 1 | 82,853 | 100.0% | ||
| 1964 | IA | D | Treasurer | General | 1 | 606,108 | 54.7% | ||
| 1966 | IA | D | Treasurer | Primary | 1 | 69,301 | 100.0% | ||
| 1966 | IA | D | Treasurer | General | 1 | 427,311 | 50.7% | ||
| 1968 | IA | D | Governor | Primary | 1 | 101,274 | 100.0% | ||
| 1968 | IA | D | Governor | General | 2 | 521,216 | 45.9% | ||
| 1972 | IA | D | Governor | Primary | 1 | 85,807 | 57.5% | ||
| 1972 | IA | D | Governor | General | 2 | 487,282 | 40.3% | ||
|
Age: Age as of July 1 of the year pertaining to this election. |