June 26, 2018
| Candidate | Party | Votes | Pct. | |
|---|---|---|---|---|
| Tony Campbell | Republican | 49,428 | 29.2% | |
| Chris Chaffee | Republican | 40,869 | 24.2% | |
| Christina Grigorian | Republican | 29,532 | 17.5% | |
| John Graziani | Republican | 14,844 | 8.8% | |
Others
|
34,374 | 20.3% |