Associated Press calls Garamendi winner in California's 10th congressional race; so far, early results show Garamendi in the lead

UPDATE 9:20 p.m. CBS5 says the Associated Press is calling the 10th congressional race, to replace former U.S. Representative Ellen Tauscher, for her fellow Democrat, state Lt. Governor John Garamendi.

As of 8:30 p.m.: Garamendi had been leading his main opponent, David Harmer, in the race for U.S. representative in California's 10th congressional district.

Garamendi was leading Harmer, a Republican and San Ramon attorney, with 56 percent of the vote. That is, with 78 of 273 precincts reporting. Harmer has nearly 40 percent of the vote.

Contra Costa Times' Lisa Vorderbrueggen's Political Blotter column reports that vote-by-mail results posted in Contra Costa County show Garamendi leading with 57percent compared with 38 percent for Republican David Harmer.