2018Final results
2018 election for California's 23rd District
U.S. House · California
Kevin McCarthy (R) won with 63.7% of the vote, defeating Tatiana Matta (D) by 27.4 points.
Kevin McCarthyRepublican · winner
63.7%131,113
Tatiana MattaDemocrat
36.3%74,661
205,774 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.
Tatiana MattaKevin McCarthy
$116.1K
Raised by the campaign
$8M
$106.3K
Spent by the campaign
$8.2M
$9.7K
Cash on hand
$1.3M
Campaign money: FEC, through Dec 31, 2018.
Source: FEC campaign filingsUpdated Dec 31, 2018