Former FBI Director James Comey has broken his silence, and he's not sugar coating his thoughts about the man who fired him.
In an exclusive interview with ABC News' George Stephanopoulos Sunday night, Comey says President Trump is "morally unfit to be president."
It was his first interview since he was fired by Trump almost a year ago as he promotes his new book.
"Our president must embody respect and adhere to the values that are at the core of this country, the most important being truth. This president is not able to do that. He is morally unfit to be president," Comey said.
Monday morning, Trump adviser Kellyanne Conway criticized Comey for peddling a "revisionist version of history." She says Comey made a choice to sink into the "gutter" with petty comments about the size of Trump's hands and the length of his tie.
During the interview, Comey detailed what he considered some of the most controversial moments of his career – among them, reopening the Hillary Clinton email investigation just ahead of the 2016 presidential election.
Comey said he had no choice because that's where the investigation led them.
"The norm is, 'If you can avoid it, you take no action that might have an impact on an election,' and I can't see a door that's labeled, 'No action here,'" Comey told Stephanopoulos.
Still, he expressed disgust that the investigation could have influenced the election which Trump won in an upset that stunned Washington.
"A whole lot of me was thinking, 'oh my G** did, we have some role in this?' "
But he says if he were given the chance to do it over, he would because he says he wouldn't want to be influenced by politics.
"If I ever start considering whose political fortunes will be affected by a decision, we're done...We're just another player in the, in the tribal battle," said Comey.
But then Comey turned away from that moral high ground, and in one of his most critical moments in the ABC interview, he compared Trump to a mob boss.
"I'm not trying to, by the way, suggest that President Trump is out breaking legs and...shaking down shopkeepers. But instead, what I'm talking about is that leadership culture," he said.
Ahead of the interview, Sunday night, President Trump lashed out on Twitter, calling Comey the "worst FBI director in history."
Slippery James Comey, a man who always ends up badly and out of whack (he is not smart!), will go down as the WORST FBI Director in history, by far!
— Donald J. Trump (@realDonaldTrump) April 15, 2018
Comey says the American public needs to vote Trump out of office in 2020, saying it's a duty they're bound to do directly, rather than be let off the hook by impeachment.