Calling Comey a "disgraced partisan hack", White House spokeswoman Sarah Sanders told reporters that the American people would be able to see through the "lies" in Comey's book, which offers a scathing assessment of President Trump.
Trump has often publicly criticized Comey since firing him, but escalated his attacks in response to the book.
In this June 8, 2017 file photo, former FBI Director James Comey reacts during a Senate Intelligence Committee hearing on Capitol Hill in Washington. But still, Trump today casually suggested he's retroactively pleased he fired Comey because he failed to "LOCK HER UP!"
Trump accused Comey of lying to Congress, but did not specify was he was referring to, and said the former Federal Bureau of Investigation chief should be prosecuted for leaking classified information.
But the new Post/ABC poll represents a major public vote of confidence in the investigation - and a major repudiation of Trump's delegitimization of it as a mere "witch hunt".
The feud is unlikely to dissolve quickly as Comey is embarking on a media blitz as part of his book tour. Instead of facing insistent questions about the "nice and new and 'smart!'" missiles Trump told Russian Federation, over Twitter, to be "ready" to face in Syria, White House press secretary Sarah Sanders got to grandstand a bit by relaying a list of damning criticisms of Comey from a host of Democrats.
Trump has furiously lashed out at Comey in recent days.
Former FBI director James Comey's 304-page book, coming out Tuesday, promises to share never-before-heard stories about his interactions with President Trump.More news: Former FBI director Comey likens Trump to a mafia boss
He described Trump as volatile, defensive and concerned more about his own image than about whether Russian Federation meddled in the presidential election.
Moscow has repeatedly denied that it interfered in the 2016 campaign in hopes of tilting the election in Trump's favor. Moscow has denied meddling.
"First of all, I don't think he should be fired", he said of Mr. Mueller.
Trump fired Comey last May when Comey was in charge of the Justice Department's investigation into Russian interference in the 2016 election, and potential connections to the Trump campaign. She also took issue with some of Comey's personal commentary in the book, saying it was "no way to comport oneself after you're trying to prove that you have this quote, 'higher loyalty'".
In the teaser video for the throw-down between the two, the buzz words all come out of Stephanopoulos's mouth, including mob boss, the untold knowledge that can damage Trump, obstruction of justice, and impeachment. "It was nearly an out-of-body experience for me". She adds that Comey's loyalty is "only to himself". I want you to know that nothing - nothing - has happened in the past year to change my view.' On the verge of tears, Comey told Obama, 'Boy, were those words I needed to hear.
The president has repeatedly denied the allegation - which emerged in early 2017 with news reports of a dossier funded by political opponents of his - and there now exists no credible evidence to verify the claim.
Before Trump and Comey met alone, USA intelligence chiefs briefed Trump and his advisers on Russia's election meddling.
Trump's allies have prepared an extensive campaign to fight back against Comey's publicity tour, trying to undermine his credibility by reviving the blistering Democratic criticism of him before he was sacked almost a year ago.