| Year | Age | State | Party | Office | District | Stage | Pos | Votes | % |
|---|---|---|---|---|---|---|---|---|---|
| 1968 | TX | D | Lt. Governor | Primary | 1 | 1,221,450 | 76.7% | ||
| 1968 | TX | D | Lt. Governor | General | 1 | 2,040,480 | 72.0% | ||
| 1970 | TX | D | Lt. Governor | Primary | 1 | 1,045,878 | 100.0% | ||
| 1970 | TX | D | Lt. Governor | General | 1 | 1,497,515 | 66.6% | ||
| 1972 | TX | D | Governor | Primary | 3 | 392,356 | 17.9% | ||
|
Age: Age as of July 1 of the year pertaining to this election. |