Giuliani trashes Mueller probe over 'unethical' tactics after Cohen guilty plea

President TrumpDonald John TrumpThorny part of obstruction of justice is proving intent, that's a job for Congress Obama condemns attacks in Sri Lanka as 'an attack on humanity' Schiff rips Conway's 'display of alternative facts' on Russian election interference MORE's attorney, Rudy Giuliani, took aim at special counsel Robert MuellerRobert Swan MuellerSasse: US should applaud choice of Mueller to lead Russia probe MORE in an interview airing Sunday, criticizing what he called "unethical" tactics by prosecutors in Mueller's office after former Trump lawyer Michael Cohen pleaded guilty to lying to Congress.

In an interview with AM 970 in New York, Giuliani accused Mueller of crossing a line by "intimidating" Trump's allies into saying "what he believes [is] his version of the truth."

“They obviously exerted a lot of pressure on him. Mr. Cohen unfortunately has a history of significant lies in the past," Giuliani told host John Catsimatidis, reacting to Cohen's admission last Thursday that he lied to Congress when he previously detailed to the body the extent of the president's business dealings in Russia.

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"This isn’t a search for the truth. It’s a witch hunt," Giuliani continued. "This is what is wrong with these special prosecutors and independent counsels. They think they are God."

"They seem to want to prosecute people at any cost, including the cost of ethical behavior and the rights of people."

The former New York City mayor, who joined Trump's legal team earlier this year to handle the White House's response to the special counsel probe, added that Mueller's prosecution of Paul ManafortPaul John ManafortNadler: I don't understand why Mueller didn't charge Donald Trump Jr., others in Trump Tower meeting Trump Tower meeting: A shining example of what not to investigate Ex-Obama White House counsel's trial set for August MORE, Trump's former campaign chairman, was intended to force Manafort to implicate Trump in collusion with Russia that Giuliani says never occurred.

"They want [Manafort] to give certain forms of evidence that would implicate the president in things that Mr. Manafort says are untrue," Giuliani said. 

"And they are pressuring him, and creating a real risk that the man might commit perjury," he added. "This kind of pressure can create the risk of tainted testimony."

Mueller's office told a judge last Friday that prosecutors are considering further charges for the former Trump aide, who was accused earlier in the week of violating his plea agreement by lying to investigators.

Manafort “committed federal crimes by lying to the Federal Bureau of Investigation and the Special Counsel’s Office on a variety of subject matters,” Mueller wrote in court filings.

A judge has given Mueller's team until Dec. 7 to explain how Manafort allegedly violated his plea agreement. He is currently scheduled to be sentenced in March.