Sen. Lindsey Graham joined Neil Cavuto on "Your World" Friday to discuss the sentencing of Michael Cohen and the possible campaign finance violations President Trump could be facing.

Cohen -- President Trump's former longtime attorney -- was sentenced to three years in prison for a range of crimes, including tax evasion, campaign-finance violations and lying to Congress.

In an interview with "Good Morning America" that aired Friday, Cohen said Trump knew that hush-money payments to Stormy Daniels and Karen McDougal were wrong and that the payments were made to help his presidential campaign.

FULL PART 1: "I'm angry at myself, because I knew what I was doing was wrong," Michael Cohen tells @GStephanopoulos. https://t.co/sTCn23S6sb More of the exclusive interview is just ahead on @GMA. pic.twitter.com/6X1CNcvWDx — Good Morning America (@GMA) December 14, 2018

PART 2: Michael Cohen speaks out exclusively to @GStephanopoulos.

On if he felt Donald Trump was telling the truth about everything related to the special counsel's Russia probe, Cohen says: "No." FULL @GMA STORY:https://t.co/4ehqd1fP6A TRANSCRIPT:https://t.co/sTCn23S6sb pic.twitter.com/jS7TksHiBH — Good Morning America (@GMA) December 14, 2018

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Graham pointed out that the underlying theme of Special Counsel Robert Mueller's investigation is if there was collusion with Russia to change the outcome of the 2016 presidential election.

He said that thus far, there has been no evidence of collusion, and Trump associates have been charged with unrelated crimes in the ever-widening probe.

He said he's not sure what could come from the possible campaign finance violations, but he said "it doesn't have a damn thing to do with Russia."

"If you think this is worthy of impeachment in the House, go ahead. I think most Americans won't agree with you," Graham said.

Graham voted against one of the four Articles of Impeachment in the House Judiciary Committee. It dealt with President Clinton lying under oath about sex.

"Lying about sex wasn't enough then for me. And it's not enough now."

Watch the full "Your World" interview below.

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