| Year | Age | State | Party | Office | District | Stage | Pos | Votes | % |
|---|---|---|---|---|---|---|---|---|---|
| 2006 | TX | D | Land Commissioner | Primary | 1 | 401,556 | 100.0% | ||
| 2006 | TX | D | Land Commissioner | General | 2 | 1,720,985 | 40.9% | ||
| 2008 | TX | D | U.S. House | District 04 | Primary | 2 | 27,766 | 42.6% | |
| 2010 | TX | D | U.S. House | District 04 | Primary | 1 | 13,783 | 100.0% | |
| 2010 | TX | D | U.S. House | District 04 | General | 2 | 40,975 | 22.0% | |
| 2012 | TX | D | U.S. House | District 04 | Primary | 1 | 7,389 | 100.0% | |
| 2012 | TX | D | U.S. House | District 04 | General | 2 | 60,214 | 24.1% | |
|
Age: Age as of July 1 of the year pertaining to this election. |