SACRAMENTO, Calif. — Voters in the Los Angeles County district formerly represented by Democrat Jimmy Gomez will vote for a new representative in the state Assembly later this year, California Gov. Jerry Brown announced Monday.

Gomez was elected to the U.S. House of Representatives in June. Brown set the special election to replace him for Dec. 5.

The special primary election will be Oct. 3 and the top two vote-getters will advance to the December general election, unless one candidate wins an outright majority in the primary.

A handful of candidates have already filed to run in the race in the overwhelmingly Democratic district.

Gomez won 60 percent of the vote in the June special election to replace Democrat Xavier Becerra, who resigned his congressional seat after Brown appointed him to be attorney general of California.

Gomez was sworn into office July 11. With Gomez gone, Assembly Democrats no longer have a vote to spare on bills that require a two-thirds supermajority.