Hunter Biden's lawyer demanded former president Donald Trump stop attacking his client, claiming his social media posts put his family in danger.
"It would seem that Mr. Trump is facing enough legal problems that he would not want to create any more liability," lawyer Abbe Lowell said in a cease-and-desist letter, pointing to the multiple charges Trump faces in New York and with the Department of Justice.
Citing the January 6, 2021, Capitol riots as evidence Trump's words have caused violence, Lowell said, "We are just one such social media message away from another incident."
Trump recently insinuated the cocaine found in the White House earlier this month, for which the Secret Service failed to name a suspect, could be Hunter Biden's.
"I’d bet they already know the answer, but just in case, it could be done in 5 minutes," Trump said on Truth Social. "Is it Crooked Joe and his wonderful son, Hunter? Release the findings, release the tapes. We can’t have a crackhead in charge of our Nuclear Arsenal!!!"
Hunter Biden agreed in June to plead guilty to misdemeanor tax crimes, a move that will likely keep him out of prison. The plea deal ends a five-year probe by the Justice Department into Biden's taxes.
An IRS whistleblower alleged that the Justice Department shielded Biden and his father from scrutiny, undermining the tax investigation.
Biden has received wide criticism in recent months for his role in his family's foreign business dealings.
Texts surfaced last month showing Hunter Biden invoking his father's name to threaten a Chinese businessman to pay up.
"Z if I get a call or text from anyone involved in this other than you, Zhang or the Chairman I will make certain that between the man sitting next to me and every person he knows and my ability to forever hold a grudge that you will regret not following my direction," Hunter Biden told Henry Zhao, an official with the Chinese military intelligence-linked energy company CEFC China Energy in 2017. "I am sitting here waiting for the call with my father. I sure hope whatever it is you are doing is very very very important."
President Joe Biden denied any knowledge of the texts. "No, I wasn’t!" Joe Biden shouted at a reporter who asked in late June if he was with his son when the threat was sent. The Washington Free Beacon found that photos on Hunter Biden's abandoned laptop place him at his father's house the day the messages were sent.
