2016Final results
2016 election for California Senate District 25
California State Senate · California
Anthony J. Portantino (D) won with 57.8% of the vote, defeating Mike D. Antonovich (R) by 15.7 points.
Anthony J. PortantinoDemocrat · winner
57.8%218,242
Mike D. AntonovichRepublican
42.2%159,014
377,256 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 4:52 AM ET
The seat over time
D − R margin in this seat's races around 2016
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 4:52 AM ET