With Levin leading Matt Gunderson by 4 percentage points, the Associated Press called the race in the incumbent’s favor Tuesday.

Democratic Rep. Mike Levin will win reelection, defeating Republican challenger Matt Gunderson in a close contest for California's 49th Congressional District, NBC News projects.

Rep. Mike Levin on Tuesday won reelection to the House in the 49th District, according to the Associated Press.

Democrat Mike Levin wins reelection to U.S. House in California's 49th Congressional District WASHINGTON -- Democrat Mike Levin wins reelection to U.S. House in California's 49th Congressional District. 24/7 coverage of breaking news and live events

Early vote counts released Tuesday night showed Democratic Rep. Mike Levin leading in California’s 49th congressional district race.

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. The current balance of power in the House of Representatives with Calvert's win is 217 to 207,

Democratic Rep. Mike Levin has been reelected to a fourth term representing the 49th Congressional District, a race with national implications but one that remained too close to call until a week after Election Day.

Democratic Congressman Mike Levin has claimed victory in the election. It comes after the official Associated Press election vote count showed him winning after a very tight race against Republican Matt Gunderson in the 49th District which includes the North County and parts of Orange County.