2020Final results
2020 election for California Senate District 1
California State Senate · California
Brian Dahle (R) won with 59.7% of the vote, defeating Pamela Dawn Swartz (D) by 19.4 points.
Brian DahleRepublican · winner
59.7%326,836
Pamela Dawn SwartzDemocrat
40.3%220,563
547,399 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 10:09 AM ET
The seat over time
D − R margin in this seat's races around 2020
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 10:09 AM ET