Former FBI Director James ComeyJames Brien ComeyEx-GOP lawmaker: Strzok hearing 'was a humiliating day' for Republicans Ignore the spin — still no evidence of Trump collusion Peter's 'principles' damaged public's faith in FBI MORE said in an interview Sunday night that President TrumpDonald John TrumpReporters defend CNN's Acosta after White House says he 'disrespected' Trump with question Security costs of Trump visit to Scotland sparks outrage among Scottish citizens Ex-CIA officer: Prosecution of Russians indicted for DNC hack 'ain't ever going to happen' MORE treated women like "meat" and is morally unfit to be president.

Comey, in an exclusive interview with ABC News chief George Stephanopoulos, blasted the president during his first television interview since he was fired last May, describing him as a serial liar and a “stain” on everyone who worked for him.

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"I think he's morally unfit to be president," Comey told Stephanopoulos.

"A person who sees moral equivalence in Charlottesville, who talks about and treats women like they're pieces of meat, who lies constantly about matters big and small and insists the American people believe it, that person's not fit to be president of the United States, on moral grounds," he continued.

Comey’s interview coincided with the release of his book, “A Higher Loyalty: Truth, Lies, and Leadership,” which details his interactions with the president and the fallout from the 2016 presidential campaign.

In the days since the first excerpts of Comey’s book were released, Trump has lashed out at the former FBI director, labeling him a “leaker and liar,” a “slimeball” and “worst FBI Director in history, by far!”

Trump fired Comey last May. His ouster from the FBI led to the appointment of special counsel Robert Mueller to lead the investigation into Russian meddling in the 2016 presidential campaign.