Lawyer Michael Avenatti, who attained national prominence as a legal antagonist of President Trump, has been arrested on federal bank fraud and wire fraud charges.
Prosecutors in California say he embezzled client money to pay his own expenses and debts.
Avenatti was arrested in New York on separate federal charges.
Authorities there say he tried to extract more than $20 million from shoe giant Nike by threatening to use his ability to attract public attention if the company failed to meet his financial demands.
Avenatti had written on Twitter on Monday, before the case against him was announced in New York, that he planned a press conference about “a major high school/college basketball scandal that we have uncovered.”