"One hundred per cent of the people around him" question Trump's fitness for office, Wolff said in an interview with NBC's Today show.
On Thursday Rebekah Mercer issued a statement distancing her family from Bannon.
According to the book, Steve Bannon, President Trump's former chief strategist, predicted the 25th Amendment could be used to remove the president.
The book contains numerous examples of alarming disorganization in the White House but many readers will be more interested in the juicy details of the curious and comical things the president does in his daily life.
Attempts by President Donald Trump's lawyers to squash the publication of a controversial book about his administration have only fanned the flames. He also came up with a new nickname for Bannon: "Sloppy Steve". "So it's particularly curious that he would be calling for Sessions to model himself after Eric Holder if in fact that happened". White House press secretary Sarah Huckabee Sanders went so far as to suggest that Bannon ought to be booted from Breitbart, the populist website he helps run.
Chris Wallace said that he personally spoke to a former senior offical at the White House who confirmed that the administration was told to "play ball" with Michael Wolff knowing that many books would be released about the first year of the Trump administration, and they were hoping to get a "fair shake".
"Michael Wolff is a total loser who made up stories in order to sell this really boring and untruthful book", Trump wrote.
"He is becoming very unstable very quickly".
"You realise where this is going", Bannon says,"This is all about money laundering".
Those close to Bannon said that as the controversy unfolded, he seemed eager to find a way to try to repair his relationship with the president. Lee warned members of Congress in December that Trump "is unraveling" and "losing his grip on reality".
Dean is hardly the first to question Trump's fitness for office or compare him to Nixon, who resigned in 1974.
He lashed out again in a tweet this morning, referring to "this phony book".
The Justice Department said last September that there was no evidence to support Trump's wiretapping claim, though CNN reported later that month that US investigators had wiretapped former Trump campaign chairman Paul Manafort before and after the election, including a period when Manafort was known to talk to Trump.
Bannon's statement continued: "Everything I have to say about the ridiculous nature of the Russian 'collusion' investigation I said on my 60 Minutes interview. Trump would tell friends that he and Jared had engineered a Saudi coup: 'We've put our man on top!'"
She said that Bannon "spent a lot more time with reporters than he ever did with the president". "He's like a pinball just shooting off the sides".
"As we have previously stated, allegations that GCHQ was asked to conduct 'wire-tapping' against Trump Tower are nonsense". It's the Mercer family that funds Bannon's enterprises, including Breitbart.
The store had 75 copies to sell.
He added: 'What they mean by that is he has the need for instant gratification.
Green: Look, here on planet Earth we're all rightly astonished that Bannon holds (held?) presidential ambitions. Delighted I trouble Trump when comparing his presidency to Watergate. Over time, they concluded that "he cannot do this job".
Green: In the near term, Bannon does (and is doing) what everybody who wants to influence and ingratiate themselves to Trump does: Flatter him with obsequious praise.
Some Trump allies even encouraged him to welcome Bannon back into his good graces.
"You can either excise him or shun him, which I don't think is the best recommended strategy, or tell him to knock it off and bring himself back into the fold", Anthony Scaramucci, the former White House communications director, said on MSNBC.
Trump coolly noted Thursday that his full-throated counterassault appeared to have its desired effect on Bannon. Trump said last March. "He obviously changed his tune pretty quick". The bookstore sold out of "Fire and Fury", a source told ABC News.