California in spotlight as US voters cast ballots in primaries

LOS ANGELES (AFP) – Voters cast ballots in eight US states for key primary elections on Tuesday, with all eyes on California, where the outcome could swing the balance of power in Congress.

Democrats in the country's most populous state are battling to ensure they come out on top in several congressional districts that voted for Hillary Clinton over Donald Trump in the 2016 presidential election.

However, given the state's unusual election system in which the two top votegetters move on to the general election in November, regardless of party affiliation, Democrats fear they may give Republicans the upper hand in some districts where they have a glut of candidates.

''The worry is that with so many enthusiastic Democrats running for Congress, the Democrats will split up the Democratic vote and you'll end up with one or two Republicans in the top two slots,'' said Elaine Kamarck, a senior fellow at the Washington-based Brookings Institution.

''So there's quite a bit of concern that this would backfire and that congressional districts that would elect a Democrat in the end would be given only the choice of Republicans.''

The race drew huge attention nationwide, especially given how solidly Democratic California has been, but it is unclear whether the high stakes will spur voters to cast ballots.

''Turnout is always the uncertainty in primary elections,'' said Louis DeSipio, a political science professor at the University of California at Irvine.

''If Democrats are as energized in California as they have been in some other states, they can move into the general election with no viable Republicans running statewide.

''This seems unlikely, but is a possibility.''

Officials said tabulating final results for the vote may take several days, or even weeks, given that many of the 19.4 million registered voters are casting their ballots by mail.

There were 27 candidates looking to succeed Democratic Governor Jerry Brown, and more than two dozen looking to replace veteran US Senator Dianne Feinstein.

The race for governor will now be between deputy governor Gavin Newsom, a Democrat, and Trump-backed Republican John Cox, a businessman who is not well known, according to results published late Tuesday on the state government website.