Donald Trump Jr.Donald (Don) John TrumpGeorge Conway and Trump Jr. trade personal insults during impeachment hearing Trump: 'Everybody knows who the whistleblower is' Donald Trump Jr. says critics are 'subverting will of the people' MORE on Monday mocked Michael Avenatti following the news that the lawyer had been arrested and charged with wire fraud and extortion.

“Good news for my friend [Michael Avenatti],” President TrumpDonald John TrumpTrump opens new line of impeachment attack for Democrats Bloomberg to spend 0M on anti-Trump ads in battleground states New witness claims first-hand account of Trump's push for Ukraine probes MORE's eldest son tweeted. “If you plead fast enough, you might just get to share a cell with Michael CohenMichael Dean CohenTrump bemoans 'double standard' in Stone conviction Day one impeachment hearings draw 13.1M viewers, down 32 percent from Comey hearings DC bars to open early for impeachment mania MORE!”

Trump Jr. also included the hashtag #basta, meaning “enough” or "stop" in Italian, which Avenatti has repeatedly used to promote his legal actions against President Trump.

Avenatti is best known for formerly representing adult-film star Stormy Daniels in a number of lawsuits against President Trump and Cohen, the president's ex-personal lawyer.

In another tweet, the president’s son added: “#MAGA — Michael Avenatti Getting Arrested!!!”

Avenatti was charged Monday with extortion by federal prosecutors in Los Angeles.

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According to court documents, Avenatti is accused of threatening to expose damaging information about Nike unless the company paid millions to him and a client.

The charges come after Avenatti announced a press conference about alleged “criminal conduct” by Nike.

Cohen is headed to prison in May after pleading guilty to a number of financial crimes committed while he worked for the president, as well as lying to Congress.

Trump Jr. tweeted several more times at Avenatti, and resurfaced some of the lawyer’s old comments targeting him.

“Donald Trump Jr. will be indicted before his birthday on 12-31-18,” Avenatti tweeted in October. “If you doubt my prediction, please check my record over the last 7 months. #Winning.”

Trump Jr. responded to that tweet on Monday: “How'd that work out for you buddy?”

--This report was updated at 3:07 p.m.