2018Final results
2018 election for California's 5th District
U.S. House · California
Mike Thompson (D) won with 78.9% of the vote, defeating Anthony Mills (Ind) by 57.7 points.
Mike ThompsonDemocrat · winner
78.9%205,860
Anthony MillsIndependent
21.1%55,158
261,018 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET
The seat over time
D − R margin in this seat's races around 2018
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET
Money in this race
Each line compares the two campaigns on one scale.
Mike ThompsonNo Republican
$2.1M
Raised by the campaign
—
$2.1M
Spent by the campaign
—
$1.6M
Cash on hand
—
Campaign money: FEC, through Dec 31, 2018.
Source: FEC campaign filingsUpdated Dec 31, 2018