The sense that the clash between a disruptive President who marches to his own tune and traditional establishment values is becoming serious heightened over the weekend after Comey, who was sacked by Trump, purportedly for not professing loyalty to the President, attacked him for moral turpitude and suggested he may be compromised because of this.
Comey's book, which leaked out last week ahead of its official release Tuesday, takes on the president who fired him in May 2017 over the troubling Russian Federation election meddling investigation, a probe that poses a deep threat to Trump's 15-month-old presidency.
"I hope folks read the whole thing and find it useful", referring to Trump as the counterpoint to former U.S. president George W Bush and Barack Obama.
Comey is promoting a new book - and incurring Trump's wrath as he does.
In this file photo from June 8, 2017, former Federal Bureau of Investigation director James Comey speaks during a Senate Intelligence Committee hearing on Capitol Hill. "Donald Trump's presidency threatens much of what is good in this nation", Comey writes. "Again, I don't care what your views are on guns or immigration or taxes", said Comey.
While ABC aired one hour of its conversation with Comey, it had conducted a five-hour interview with him, a transcript of which was obtained by The New York Times.
Comey also said that he doesn't know if some salacious accusations in the controversial dossier on Trump are true.
Hillary Clinton supporters far and wide still see Comey as the reason she lost the 2016 election thanks to his handling of the investigation into her use of a private email server.
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On the face of it then, Comey's book should pose quite a threat to the reputation of a President still embroiled in the Russian Federation investigation, and scandals involving women allegedly paid off to keep quiet about affairs.
The president began assailing Comey even before the interview came out. "He looked slightly orange up close", said Comey.
But I don't think it's going to have the kind of effect Comey perhaps imagined it would.
But Mr Comey's final judgement of Mr Trump was expressed in those moral terms, and was devastating.
Comey answered, "I hope not because I think impeaching and removing Donald Trump from office would let the American people off the hook and have something happen indirectly that I believe they're duty-bound to do directly".
The probe into possible collusion between the Trump campaign and Russians during the 2016 presidential race, now led by independent special prosecutor Robert Mueller, increasingly menaces Trump's inner circle. I think he felt a pressure in the political environment because he wanted Hillary Clinton to be elected, to give her a shot in the arm, ' said Comey.
In the interview excerpt released on Saturday, Mr Comey said he did not remember "consciously thinking" about the election results as he chose to disclose that the FBI had reopened its investigation into candidate Ms Clinton's email use, but he said "I was operating in a world where Hillary Clinton was going to beat Donald Trump, and so I'm sure that it was a factor". Hours before the interview aired, the president, who fired Comey past year, unleashed a Twitter outburst that labeled Comey "slippery", suggested he should be put in jail and branded him "the WORST FBI Director in history, by far!"