Alan Dershowitz, a Harvard Law School professor emeritus, said the federal judge in the Paul Manafort case has validated his arguments against special counsel Robert Mueller’s investigation into President Trump’s campaign.

U.S. District Judge T.S. Ellis III pressed Justice Department lawyers on Friday to explain how they did not exceed the scope of Mueller’s investigation into Russian interference in the 2016 election, and debated whether their ultimate goal was to get Manafort to turn on Trump.

“You don’t really care about Mr. Manafort’s bank fraud ... You really care about getting information Mr. Manafort can give you that would reflect on Mr. Trump and lead to his prosecution or impeachment,” Ellis told the Justice Department lawyers during Manafort’s court appearance in Virginia.

Sometimes prosecutors stretch the law to charge “low hanging fruit” with a technical crime to get them to flip on a bigger target, Dershowitz told “Fox & Friends” on Saturday.

“I’ve been saying it over and over again. People have been calling me a liar, a conspiracy theorist, you name it. Finally, we get a judge who absolutely validates this and blows the whistle on the special counsel,” Dershowitz said.

Dershowitz regularly appears on Fox News to argue against Mueller bringing a possible obstruction of justice charge against Trump.