September 5, 1945
Special Election
Special Election called to fill the seat vacated by the death of Hiram Johnson.
| Senate1 | |||
| Douglas Corrigan | Write-in | 0.4% | Lose |
| George C. Highley | Write-in | 0.2% | Lose |
| William F. Knowland | Write-in | 77.5% | Win |
| Aubrey D. Lewis | Write-in | 0.1% | Lose |
| George H. McLain | Write-in | 3.3% | Lose |
| Frank F. Merriam | Write-in | 0.1% | Lose |
| James Moran | Write-in | 0.2% | Lose |
| Ellis E. Patterson | Write-in | 0.7% | Lose |
| Vic Paulsen | Write-in | 0.3% | Lose |
| Hartley F. Peart | Write-in | 0.3% | Lose |
| Ben Rinaldo | Write-in | 0.1% | Lose |
| Will Rogers Jr. | Write-in | 16.5% | Lose |
| Moody Staten | Write-in | 0.3% | Lose |
