January 8, 1991
Special Election
Special Election to fill the seat vacated by the resignation of State Senator John Garamendi (SD-05). Garamendi resigned after being elected Insurance Commissioner.
| SD-05 | |||
| Patrick Johnston | Democratic | 56.9% | Win |
| Tom Tryon | Libertarian | 5.1% | Loss |
| Philip Wallace | Republican | 38% | Loss |
