2016 General Election
| Robert "Beto" O'Rourke | 85.77% |
| Jaime "JOP" Perez | 9.93% |
| Mary L. Gourdoux | 4.30% |
2016 Democratic Party Primary Election
| Robert "Beto" O'Rourke | 85.58% |
| Benjamin Eloy Ben Mendoza | 14.42% |
2014 Republican Party Primary Election
| Corey Dean Roen | 100.00% |
2014 Libertarian Party Primary Election
| Jaime "JOP" Perez | 100.00% |
2014 Democratic Party Primary Election
| Robert "Beto" O'Rourke | 100.00% |
2012 General Election
| Robert "Beto" O'Rourke | 65.53% |
| Barbara Carrasco | 32.81% |
| Junart Sodoy | 1.64% |
2012 Democratic Party Primary Election
| Robert "Beto" O'Rourke | 50.47% |
| Silvestre Reyes | 44.34% |
| Jerome Tilghman | 2.75% |
| Ben E. Mendoza | 1.52% |
| Paul Johnson Jr. | 0.90% |
2012 Republican Party Primary Election
| Barbara Carrasco | 58.88% |
| Corey Dean Roen | 41.11% |
2012 Libertarian Party Primary Election
| Junart Sodoy | 100.00% |
