Wolff reported in his book that former Fox News chairman Roger Ailes approached Bannon in April about teaming up to launch a new conservative television network that would feature the just-fired Bill O'Reilly.
Wolff's book says Bannon labeled as "treasonous" Donald Trump Jr.'s and Trump son-in-law Jared Kushner's 2016 meeting with Russian nationals in which the president's son expected to receive dirt on Democrat Hillary Clinton.
In response to Bannon's allegations, the President said that when he "lost his job" at the White House, "he also lost his mind".
Of course, Steve Bannon plays a large part in this account, and Wolff indicates that Bannon and other Trump staffers (including Trump's family) conflicted constantly.
In fact, Trump has declared all-out war on Bannon for his scathing criticisms of not only Trump's family but Trump himself.
Once a trusted adviser to the president, Bannon enraged Trump after he was prominently quoted in "Fire and Fury" making disparaging remarks about Trump's children.
Bannon, a former investment banker and Hollywood filmmaker, will work with Breitbart on a smooth and orderly transition, the site said.
Breitbart did not say whether Bannon was sacked or quit. One said Bannon was telling people as recently as Monday that he expected to stay on. Breitbart's editors insisted the site endorsed none of those views. To Trump and those around him, his 2016 win has long served as vindication of their entire approach to politics.
"He's gone from the top of the mountain to the deepest valley, and it was all self-inflicted, " said veteran GOP strategist Edward Rollins, who has worked with Bannon and is chairman of Great America, a pro-Trump group. But earlier this week, the CEO of Henry Holt's parent company, Macmillan, said "we have never seen a book sell at this rate here at Macmillan". Although he was nearly unknown beyond the website and its readers, he quickly built a reputation as the brain who supplied the political philosophy for the billionaire's unlikely tilt at the White House and brought the discipline to win critical states in the mid-West.