Hillary Clinton Will Air TV Ads In California To Compete With Bernie Sanders

Hillary Clinton is poised to start airing her first television commercials in California on Friday, a campaign official tells CNN, a sign she is taking seriously her challenge with Bernie Sanders in the state's June 7 primary.

While Clinton is fewer than 100 delegates away from clinching the Democratic nomination, according to a CNN estimate of delegates and super delegates, she is still urging California voters to send a message in the primary. The initial advertising buy is less than $1 million, aides said, which is a modest sum to break through in this large state.

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