President Donald Trump on Tuesday threatened to sue "everyone" that took part in former special counsel Robert Mueller's investigation and the prosecution of his longtime ally Roger Stone.

Trump addressed Stone's trial in a series of tweets Tuesday morning, saying that "these were Mueller prosecutors, and the whole Mueller investigation was illegally set up based on a phony and now fully discredited Fake Dossier, lying and forging documents to the FISA Court, and many other things."

The Department of Justice recently changed its sentencing recommendation for Stone, who was convicted on seven counts, including obstruction, lying to Congress, and witness tampering.

"Everything having to do with this fraudulent investigation is badly tainted and, in my opinion, should be thrown out. Even Mueller's statement to Congress that he did not see me to become the FBI Director (again), has been proven false," Trump added on Tuesday.

"The whole deal was a total SCAM. If I wasn't President, I'd be suing everyone all over the place," he concluded, adding, "BUT MAYBE I STILL WILL. WITCH HUNT!"

Since the change in sentencing recommendation, Attorney General William Barr has been accused by Democrats of having "deeply damaged the rule of law by withdrawing the DOJ's sentencing recommendation," according to House Speaker Nancy Pelosi, D-Calif., who described the change as an "act of interference" in a statement last week, according to NBC News.

Barr told ABC News last week that Trump's tweets about the DOJ make it "impossible for me to do my job."