2016Final results
2016 election for California's 5th District
U.S. House · California
Mike Thompson (D) won with 76.9% of the vote, defeating Carlos Santamaria (R) by 53.8 points.
Mike ThompsonDemocrat · winner
76.9%224,086
Carlos SantamariaRepublican
23.1%67,335
291,421 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.
Mike ThompsonCarlos Santamaria
$2.1M
Raised by the campaign
$2.7K
$2M
Spent by the campaign
$2.7K
$1.5M
Cash on hand
$0
Campaign money: FEC, through Dec 31, 2016; FEC, through Nov 28, 2016.
Source: FEC campaign filingsUpdated Dec 31, 2016