Incumbent Republican Rep. Ken Calvert won re-election to California's 41st Congressional District – which was deemed a tossup by observers – against Democratic challenger Will Rollins.

Republican Rep. Ken Calvert has withstood the toughest reelection fight of his 32-year career on Capitol Hill, eking out a victory in his Southern California House district despite being massively outspent by Democrats.

The Riverside County race between Calvert and Rollins to represent California's 41st Congressional District was closely watched across the country as one of several swing districts that could help determine which party won control of the House.