| Year | Age | State | Party | Office | District | Stage | Pos | Votes | % |
|---|---|---|---|---|---|---|---|---|---|
| 1968 | TX | D | Governor | Primary | 6 | 154,908 | 8.8% | ||
| 1972 | TX | D | Attorney General | Primary | 1 | 999,573 | 50.1% | ||
| 1972 | TX | D | Attorney General | General | 1 | 2,345,114 | 97.5% | ||
| 1974 | TX | D | Attorney General | Primary | 1 | 1,075,960 | 100.0% | ||
| 1974 | TX | D | Attorney General | General | 1 | 1,170,253 | 74.1% | ||
| 1978 | TX | D | Governor | Primary | 1 | 932,338 | 51.4% | ||
| 1978 | TX | D | Governor | General | 2 | 1,166,979 | 49.2% | ||
|
Age: Age as of July 1 of the year pertaining to this election. |