2016Final results
2016 election for California's 4th District
U.S. House · California
Tom McClintock (R) won with 62.7% of the vote, defeating Robert W. Derlet (D) by 25.4 points.
Tom McClintockRepublican · winner
62.7%220,133
Robert W. DerletDemocrat
37.3%130,845
350,978 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
Money in this race
Each line compares the two campaigns on one scale.
Robert W. DerletTom McClintock
$105.5K
Raised by the campaign
$1.1M
$90.9K
Spent by the campaign
$1M
$14.6K
Cash on hand
$275.2K
Campaign money: FEC, through Dec 31, 2016.
Source: FEC campaign filingsUpdated Dec 31, 2016