| Year | Age | State | Party | Office | District | Stage | Pos | Votes | % |
|---|---|---|---|---|---|---|---|---|---|
| 1968 | IA | R | U.S. Senate Class 3 | Primary | 1 | 143,854 | 58.7% | ||
| 1968 | IA | R | U.S. Senate Class 3 | General | 2 | 568,469 | 49.7% | ||
| 1970 | IA | R | U.S. House | District 01 | Primary | 2 | 18,677 | 43.6% | |
| 1974 | IA | R | U.S. Senate Class 3 | Primary | 1 | 87,464 | 66.9% | ||
| 1974 | IA | R | U.S. Senate Class 3 | General | 2 | 420,546 | 47.3% | ||
|
Age: Age as of July 1 of the year pertaining to this election. |