Harris Faulkner sat down with President Trump at the White House for an exclusive, wide-ranging interview that aired Thursday on "Outnumbered Overtime."

Faulkner asked Trump why he ever hired Michael Cohen, his former longtime attorney and self-described "fixer" who this week was sentenced to three years in prison.

Cohen pleaded guilty in a federal court in New York to tax evasion, campaign finance violations and lying to Congress about a Trump real estate project in Russia.

"It happens. I hire, usually, good people, but it just happens," Trump said, adding that Cohen mostly did "low-level" public relations work.

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He said he was impressed by Cohen when he met him many years ago when Cohen was on a condominium committee.

"He was a very big supporter of mine on that committee. I did a great job. Trump World Tower, it's a very tall building right opposite the United Nations," Trump said. "And he was on the committee. I thought he was a great guy. I thought he was really a nice guy. He was very supportive. And I liked him. And he was lawyer. And because of that, I did it. And you know what? In retrospect, I made a mistake."

He said the campaign finance violation charges against Cohen -- related to hush-money payments to women who allege to have had affairs with Trump -- were meant to "embarrass" him.

"They put those two charges on to embarrass me," Trump said. "They're not criminal charges."

Watch part one of the must-see "Outnumbered Overtime" interview above.

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