He also said of Donald "Don" Junior, "They're going to crack [him] like an egg on national TV" with regard to an ongoing investigation into potential coordination by the Trump team and the Russians to besmirch Democratic candidate Hillary Clinton and influence the election's outcome.
Trump himself said Wednesday that it "seems unlikely" that he'd give an interview in special counsel Robert Mueller's investigation into potential coordination between Russian Federation and the Trump campaign.
Bannon's spectacular downfall is a significant setback and part of a larger pattern of reversals for Breitbart and the other far-right and fascist-tinged big business forces he represents.
Bannon was chief executive of the Trump campaign in its final three months during the 2016 US elections.
Mr. Bannon had already been on the outs with his former Prince for taking all the credit for the latter's improbable and regrettable election victory.
In "Fire and Fury", Bannon faulted Donald Jr., former campaign chairman Paul Manafort and Trump's adviser and son-in-law Jared Kushner for taking the meeting with the Russians during the presidential campaign and not reporting it to the Federal Bureau of Investigation.
In the wake of the release of the book by author Michael Wolff, questions have been raised about Trumps mental and physical fitness. But Mr. Bannon has an ego only second in size to that of his former boss'.
It's clear now that Mr. Bannon has become another cross for the president to bear among an accumulating list of critics in and out of his Republican Party. He said his "treasonous" jab had been aimed at former Trump campaign manager Paul Manafort and added, sycophantically: "I remain ready to stand in the breach for this President's efforts to make America great again". As Trump aides called him disloyal and disgraceful, the president branded his former chief strategist on Twitter as "Sloppy Steve", an apparent reference to Bannon's often unkempt appearance, and declared that "he lost his mind" when he was pushed out of the White House last August.
Inside the White House, Bannon was viewed as the keeper of Trump's nationalistic flame, charting the progress on the president's promises to his base on dry erase boards in his office.