2016 General Election
| Michael McCaul | 57.38% |
| Tawana W. Cadien | 38.40% |
| Bill Kelsey | 4.22% |
2016 Republican Party Primary Election
| Michael McCaul | 100.00% |
2016 Democratic Party Primary Election
| Tawana W. Cadien | 51.94% |
| Scot B. Gallaher | 48.06% |
2014 Democratic Party Primary Election
| Tawana W. Cadien | 100.00% |
2014 Libertarian Party Primary Election
| Bill Kelsey | 100.00% |
2014 Republican Party Primary Election
| Michael McCaul | 100.00% |
2012 General Election
| Michael McCaul | 60.55% |
| Tawana W. Cadien | 36.21% |
| Richard Priest | 3.22% |
2012 Democratic Party Primary Election
| Tawana W. Cadien | 56.64% |
| William Miller Jr. | 43.35% |
2012 Republican Party Primary Election
| Michael McCaul | 83.76% |
| Eddie Traylor | 16.23% |
2012 Libertarian Party Primary Election
| Richard Priest | 100.00% |
