Glance: A look at the stakes for Republicans in California's June primary

LOS ANGELES (AP) — To clinch the Republican presidential nomination, a candidate needs to accumulate at least 1,237 delegates, which is a majority of the 2,472 delegates to the Republican National Convention in Cleveland. California, the nation's most populous state, awards the most delegates.

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PRIMARY DATE: June 7. California is the biggest prize on a day when New Jersey, New Mexico, Montana and South Dakota also vote.

DELEGATES: The California primary, open only to registered Republicans, awards 172 delegates, the most of any state and more than the four other June 7 states combined.

DIVIDING THE SPOILS: The California primary could be described as 54 separate elections one in each congressional district, and statewide. The winner in each district is awarded three delegates. The candidate who receives the largest number of votes statewide is awarded a 13-delegate bonus.

REGISTERED REPUBLICANS: Nearly 4.8 million, or 27.6 percent of voters registered in California.

1988: The last year when a Republican presidential candidate carried California in a general election. It was George H.W. Bush.