The California state director for Democratic presidential candidate Bernie Sanders Bernie SandersKenosha will be a good bellwether in 2020 Biden's fiscal program: What is the likely market impact? McConnell accuses Democrats of sowing division by 'downplaying progress' on election security MORE has reportedly left the campaign, Politico reported Wednesday.

Michael Ceraso made his exit less than a month before the June 7 California primary. He has been replaced by former Iowa state director, Robert Becker, who was brought in to help in California last month, according to ABC.

"Robert Becker is now the state director for Bernie in California,” campaign spokesman Michael Briggs said in a statement to ABC. “Becker is one of the most seasoned and savvy people working on our campaign or any campaign.”

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Ceraso had reportedly wanted the campaign to use a strategy in the state that focused less on television ads and more on field organization and digital platforms.

Before Ceraso worked on the campaign in California, he served as Sanders's deputy state director in New Hampshire and helped lead teams in states that held contests in March.

Sanders has said in the past that he plans to stay in the race through California's primary, which awards 475 delegates, and expects to do well there.

Sanders told The Sacramento Bee earlier this week that he may not air TV ads in California. He said his campaign is in "reasonably good financial shape." The candidate also said the campaign will "have to be very aggressive" in the state.

"We have tens and tens of thousands of volunteers. We’re going to be knocking on doors; we’re going to be making phone calls,” he said.

Democratic front-runner Hillary Clinton Hillary Diane Rodham ClintonWhat Senate Republicans have said about election-year Supreme Court vacancies Bipartisan praise pours in after Ginsburg's death Trump carries on with rally, unaware of Ginsburg's death MORE is leading in California by 9.7 points, according to the RealClearPolitics average of polls. Clinton has 51 percent support to Sanders's 41.3 percent.