| Year | Age | State | Party | Office | District | Stage | Pos | Votes | % |
|---|---|---|---|---|---|---|---|---|---|
| 1968 | IA | D | State Senate | District 020 | General | 1 | 13,182 | 57.1% | |
| 1970 | IA | D | Treasurer | Primary | 1 | 74,631 | 100.0% | ||
| 1970 | IA | D | Treasurer | General | 2 | 335,400 | 45.5% | ||
| 1972 | IA | D | State Senate | District 032 | General | 1 | 15,791 | 68.3% | |
| 1974 | IA | D | Lt. Governor | Primary | 2 | 51,948 | 45.7% | ||
| 1976 | IA | D | State Senate | District 032 | General | 1 | 16,512 | 75.7% | |
| 1978 | IA | D | Lt. Governor | Primary | 1 | 53,277 | 51.6% | ||
| 1978 | IA | D | Lt. Governor | General | 2 | 315,646 | 42.3% | ||
| 1980 | IA | D | State Senate | District 032 | General | 1 | 15,228 | 68.8% | |
| 1982 | IA | D | State Senate | District 039 | General | 1 | 12,049 | 56.8% | |
| 1986 | IA | D | State Senate | District 039 | General | 1 | 13,759 | 99.1% | |
| 1990 | IA | D | State Senate | District 039 | General | 1 | 16,219 | 100.0% | |
| 1994 | IA | D | State Senate | District 033 | General | 1 | 12,561 | 51.5% | |
|
Age: Age as of July 1 of the year pertaining to this election. |