| Year | Age | State | Party | Office | District | Stage | Pos | Votes | % |
|---|---|---|---|---|---|---|---|---|---|
| 1986 | NE | D | Governor | Primary | 2 | 37,975 | 26.2% | ||
| 2014 | NE | D | U.S. Senate Class 2 | Primary | 1 | 45,648 | 67.6% | ||
| 2014 | NE | D | U.S. Senate Class 2 | General | 2 | 170,127 | 31.5% | ||
|
Age: Age as of July 1 of the year pertaining to this election. |