2020Final results
2020 election for California Senate District 25
California State Senate · California
Anthony J. Portantino (D) won with 64.0% of the vote, defeating Kathleen Hazelton (R) by 27.9 points.
Anthony J. PortantinoDemocrat · winner · incumbent
64.0%295,432
Kathleen HazeltonRepublican
36.0%166,529
461,961 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