March 17, 2015
Special Election
Special Election to fill the vacancies created by the resignations of State Senators Steve Knight (SD-21) and Mimi Walters (SD-37). Knight and Walters resigned after being elected to Congress.
| SD-21 | |||
| Joshua C. Chandler | Write-in | 0.4% | Loss |
| Joshua Conaway | Write-in | 0.9% | Loss |
| Steve Hill | Write-in | 3.6% | Loss |
| Jerry J. Laws | Write-in | 0.4% | Loss |
| Richard E. Macias | Write-in | 0.3% | Loss |
| Sharon Runner | Republican | 94.1% | Win |
| Jason Zink | Write-in | 0.3% | Loss |
| SD-37 | |||
| John M. W. Moorlach | Republican | 50.3% | Win |
| Naz Namazi | Republican | 3.5% | Loss |
| Louise Stewardson | Write-in | 2.2% | Loss |
| Donald P. Wagner | Republican | 44% | Loss |