CNN's Toobin takes Trump defender Dershowitz to school after he compares 'Spygate' to FBI's MLK surveillance

CNN contributor Jeffry Toobin and his former law school professor Alan Dershowitz got into it over the FBI's handling of the Trump-Russia collusion on CNN Friday night.

"This whole enterprise, this fake controversy about a spy is about one thing, it is about discrediting the Mueller investigation, and potentially leading to his firing," Toobin said. "It has nothing to do with civil liberties or with fairness.

Dershowitz said he sees parallels between how the FBI handled the investigation into Russian interference in the Trump campaign through the use of informants and the FBI's actions targeting Dr. Martin Luther King.

Toobin was not having it.

"It's wonderful to talk about the abuses of power of Martin Luther King, and the anti-war movement, it has nothing to do with what happened here," he said. "They tried to get Martin Luther King to kill himself. And here, a couple of conversations between George Papadopoulos and this confidential informant. But to call this, as the president has, worse than Watergate is preposterous and it is our job to call it out."

Host Jim Sciutto also forced Dershowitz to clarify that there was no "spy," in the campaign as Trump has tried to claim.

"There was no person in the campaign," said host "[Trump campaign agents] had bragged about the Russians offering dirt on Hillary Clinton to them, and an informant had a conversation with them."

Watch below.