2010 California U.S. Senate Election

California · 6 candidates · See every 2010 U.S. Senate race

Who won the 2010 California U.S. Senate Election?

Barbara Boxer won the 2010 California U.S. Senate Election. Barbara Boxer received 5,218,441 popular votes (52.18%). The main challenger was Carly Fiorina (42.17%).

See the full head-to-head between Boxer and Fiorina

Boxer +10.0 pts · won by 1,001,075 votes

Barbara Boxer DemocraticWINNER52.18%

5,218,441 votes

Carly Fiorina Republican42.17%

4,217,366 votes

Gail Katherine LightfootLibertarian1.75%

175,242 votes

Marsha FeinlandPeace And Freedom1.35%

135,093 votes

Duane RobertsGreen1.29%

128,510 votes

Edward C. NoonanAmerican Independent1.25%

125,441 votes

Popular-vote totals for U.S. Senate elections come from the MIT Election Data and Science Lab (1976–2024).

Data last verified July 28, 2026.