2016Flipped from RepublicanFinal resultsIncumbent defeated
2016 election for California Assembly District 66
California State Assembly · California
Al Muratsuchi (D) won with 54.1% of the vote, defeating David Hadley (R) by 8.2 points, a seat Republicans won last time.
Al MuratsuchiDemocrat · winner
54.1%105,336
David HadleyRepublican · incumbent
45.9%89,308
194,644 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