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Former New York City Mayor Rudolph Giuliani joined Sean Hannity for a wide-ranging exclusive interview on "Hannity."

Giuliani recently joined President Donald Trump's legal team defending him in the special counsel probe into alleged Russian collusion which is headed by former FBI Director Robert Mueller.

Giuliani, 73, is a longtime friend of Trump's, and has been involved in New York City politics since serving as the U.S. attorney in the powerful Southern District of New York -- based in Manhattan.

The former mayor was in 2016 floated by Trump as a potential nominee for U.S. attorney general.

He also worked in the federal government previously, under Deputy Attorney General "Ace" Tyler Jr. during the Gerald Ford administration.

In the interview, Giuliani said people cannot blame Trump for feeling that he is being mistreated in the Mueller probe.

He added that Trump's overtures toward the Koreas are "much more significant than this garbage investigation."

Giuliani also said he has the unique qualification of having a relationship with both Trump and Mueller.

But, he said Mueller's questions, as leaked to the press earlier this week, are "intended to trap [Trump]."

Giuliani said he knows fired FBI Director James Comey, and had to decide whether the ex-director or Trump have been lying.

"Sorry Jim, you're a liar -- a disgraceful liar," he said. "It would have been good for God if God kept you out of being the head of the FBI."

He said Comey should be prosecuted for releasing sensitive information via Columbia University Professor Daniel Richman.

"I have an open mind about Bob. I’ve known about Comey, I’ve closed my mind about Comey. I know Comey much better, and I have the indignity of unfortunately of having hired him for his first big job. And I’m embarrassed that I hired him."

Giuliani and attorney Jay Sekulow were joined on the Trump defense team Wednesday by Clinton impeachment defense counsel Emmet Flood, who was named as a replacement for longtime Trump confidant Ty Cobb.

“For several weeks Ty Cobb has been discussing his retirement and last week he let Chief of Staff [John] Kelly know he would retire at the end of this month,” White House Press Secretary Sarah Sanders said in a statement on Wednesday, adding that "Emmet Flood will be joining the White House Staff to represent the president and the administration against the Russia witch hunt."

FoxNews.com has further special coverage of Giuliani's exclusive interview with Hannity.

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