On Fox News, White House aide Stephen Miller did not get good reviews for his manic performance with CNN's Jake Tapper on Sunday morning that forced the State of the Union host to shut down the interview and go to commercial.
Despite having "no knowledge" of the meeting, Miller said he was certain all of the allegations in Wolff's book are "a pure work of fiction" and "nothing but a pile of trash through and through".
"It's tragic and unfortunate that Steve would make these grotesque comments so out of touch with reality and obviously so vindictive and the whole White House staff is deeply disappointed in his comments", Miller said on Sunday.
Bannon, ousted in August as White House chief strategist, has found himself increasingly isolated, including by the Mercer family of Long Island, influential donors with whom he teamed up to boost Trump to the presidency.
CNN has not independently confirmed all the assertions in "Fire and Fury" by author Michael Wolff, which portrays Trump allies questioning the President's mental fitness for office. Bannon referred to a 2016 meeting between Donald Trump Jr and a Russian Federation lawyer at Trump Tower as "treasonous" and suggested that it was highly likely that Trump Jr told his father about the meeting.
Miller dismissed both Bannon and Wolff's credibility, saying the author was a "garbage author of a garbage book", and that claims in the book were "a pile of trash".
The interview turned into a contentious shouting match as Miller sought to highlight Trump's "political genius", and host Jake Tapper tried to move into questions addressing Trump's fitness as commander in chief, a topic central to the book.
Before that, though, Miller vigorously defended Trump's political acumen and astute grasp of voter sentiment.
Miller on Sunday echoed the language of the White House's statement to attack Bannon as well as CNN.
"I will tell you the one description that everyone gave, everyone has in common: They all say he is like a child", Wolff said in an exclusive interview on NBC's "Today". He then added, "I think I've wasted enough of my viewers' time" before cutting off the interview.
"The President's tweets absolutely reaffirm the plainspoken truth: A self-made billionaire revolutionized reality TV and tapped into something magical that's happening in the hearts of this country", Miller said.
"I'm around them all the time", Haley said.
Those close to Bannon said that as the controversy unfolded, he seemed eager to find a way to try to fix his relationship with the president. "He won't tell you that, but he knows it". The two exchanged a number of barbs, with Miller denouncing "anti-Trump hysterical coverage" and Tapper calling Miller "obsequious" and telling him: "There's one viewer that you care about", referring to Trump.