Michael Avenatti was convicted on Friday of charges he cheated the porn actor Stormy Daniels out of nearly US$300,000 she was supposed to get for writing a book about an alleged tryst with former US president Donald Trump.

Avenatti stared straight ahead as the verdict was read. It was another crushing defeat for the California lawyer, who has faced a host of legal problems after briefly rising to fame as one of Trump’s leading antagonists on cable news early in the Republican’s administration.

Avenatti fired his lawyers and decided to represent himself soon after the trial began, setting up a face-to-face showdown with Daniels, his former client, who appeared in a new role as star witness.

Lawyer Michael Avenatti arrives at Federal court in Manhattan, New York on January 24.

Prosecutors portrayed Avenatti as a common thief and serial liar. He countered by seeking to cast himself as a white knight who came to the rescue of Daniels until he turned on her.

Over two days of cross-examination, he questioned her about the allegations that he had swindled her out of book proceeds – and about ghost stories she had told for a possible show about the supernatural world.

Avenatti still faces other legal problems.

He has yet to begin serving a two-and-a-half-year prison sentence he received in 2020 for trying to extort up to US$25 million from sportswear giant Nike.

He also is awaiting a retrial in Los Angeles on charges that he ripped off clients and others for millions of dollars. He represented himself last year for six weeks before a mistrial resulted.

Daniels had initially hired Avenatti as she was trying to escape the terms of a US$130,000 hush payment deal that kept her from speaking publicly about an alleged sexual encounter that Trump says never happened.

Avenatti parlayed his representation with Daniels into a string of cable news appearances, in which he mocked and baited Trump.

When Trump’s lawyer, Michael Cohen, was raided by the Federal Bureau of Investigation (FBI) in connection with tax evasion and payments made to women on Trump’s behalf, Avenatti contributed to the spectacle by bringing Daniels to the federal courthouse.

The relationship between the two fell apart after Daniels said she learned that Avenatti had taken a share of her US$800,000 book deal for himself.

Avenatti insisted he was innocent of wire fraud and aggravated identity theft.

After opening statements and two trial witnesses, he shed his lawyers and confronted witnesses himself, setting up his questioning of Daniels, whose legal name is Stephanie Clifford.

Avenatti asked her about things she had said for a potential programme called Spooky Babes about living in a haunted house in New Orleans.

Among other things, Daniels had talked about an invisible assailant attacking her partner and communicating with dead people and with a doll who calls her “mummy.”

Prosecutors argued that Avenatti was trying to portray Daniels as crazy – what they called a “blame the victim” defence that failed to support his claim he was owed the money after spending millions of dollars representing Daniels.

“Whether you think it’s kooky to believe in the paranormal, whether you think it’s weird. She can believe whatever she wants and still be stolen from by the defendant and still deserve not to,” Assistant US Attorney Mathew Podolsky told the jury.

Lawyer Michael Avenatti arrives at federal court in New York on February 3.

Text messages, prosecutors said, showed that Avenatti repeatedly lied to Daniels in 2018 when she pressed him on when she would get a large instalment she was owed on the book deal. They said he had already spent the money on airfare, food and payroll for his debt-ridden law firm.

Podolsky likened Avenatti to a store cashier taking US$1,000 out of a till because he believed he had worked really hard and deserved a bonus.

Avenatti argued at the conclusion of the two-week trial that the government failed to prove its case.

“I’m Italian. I like Italian food. Ladies and gentlemen, the case that the government is trying to feed you has a giant cockroach in the middle of the plate,” he told the jury. “Would you eat that dish or would you send it back? I submit that you would send it back.”