Citing an unnamed source, The Wall Street Journal reported that the state party would be paying more than $1 million to settle the claims.

William Floyd, a former assistant to Mr. Bauman, said in April that Mr. Bauman, 61, had sexually assaulted him three times while he served as chairman of the state party and when he was chairman of the Los Angeles County Democratic Party. Throughout that time, Mr. Floyd said, his boss, who was more than twice his age, also groped him and made inappropriate comments to him.

“Winning elections became so important that Party leadership just ignored Eric’s drinking and his vicious attacks on people,” Mr. Floyd said in April, when he filed a lawsuit against Mr. Bauman in state court in Los Angeles County.

“Most of us lived in fear of him,” Mr. Floyd said. “A few people cared, but their voices were drowned out by so many others who didn’t want to cross Eric or do anything to stop him. No one from the Party has even apologized to me for what happened.”

The other lawsuits, filed by three former party employees and a Democratic activist, made a host of similar claims against Mr. Bauman and the party, accusing the former leader of sexually assaulting, groping or harassing them and the party of failing to stop the abuse. At least one former employee also said Mr. Bauman discriminated against her because she was black, The Los Angeles Times reported.