2010Final results
2010 election for California's 42nd District
U.S. House · California
Gary G. Miller (R) won with 62.2% of the vote, defeating Michael Williamson (D) by 30.4 points.
Gary G. MillerRepublican · winner
62.2%127,161
Michael WilliamsonDemocrat
31.9%65,122
Mark LambertLibertarian
5.9%12,115
204,398 votes
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 7:25 AM ET
The seat over time
D − R margin in this seat's races around 2010
Races before and after
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 7:25 AM ET
Money in this race
Each line compares the two campaigns on one scale.
No DemocratGary G. Miller
—
Raised by the campaign
$767.7K
—
Spent by the campaign
$769.4K
—
Cash on hand
$860.4K
Campaign money: FEC, through Dec 31, 2010.
Source: FEC campaign filingsUpdated Dec 31, 2010