The New York author spent months inside the West Wing talking to administration officials and has painted a portrait of a frenetic, incompetent White House, headed by a president described by aides as a child. That only added to the frenzy at bookstores where it was available early Friday, several days ahead of schedule.
Trump dropped Bannon from the White House in August, although the two men remained in touch afterward.
Even those were not the extent of Bannon's remarks, however.
In a series of tweets, Trump said "the Fake News Mainstream Media" are taking out "the old Ronald Reagan playbook" and questioning his fitness for office. The acrimony suggests a permanent split between the president and the strategist who helped him win the White House.
Wolff said in his interview this morning that it is "extraordinary that a president of the United States would try to stop the publication of a book".
That's an inescapable truth: Love or hate Trump, if he is "mentally unfit", then the leftwing media and the Democratic Party need to take a long look in the mirror about who beat them in the presidential election. "Suddenly everywhere people are going, 'Oh my God, it's true, he has no clothes.' That's the background to the perception and the understanding that will finally end. this presidency". Kimmel asked of Trump.
Mr Wolff said he "absolutely" spoke to the US president during his reporting of the book: "It was certainly not off the record".
Speaking to NPR, Wolff said he approached this book with an open mind about Trump.
White House press secretary Sarah Huckabee Sanders accused Wolff on Friday of fabricating quotes for the book.
"Sloppy" joins the ranks of other monikers Trump has bestowed on his foes in the past, including "Lyin' Ted" Cruz, "Little Marco" Rubio, "Liddle" Bob Corker, "Low Energy Jeb" Bush and "Crooked Hillary" Clinton.
Trump reportedly displayed more troubling behavior, such as attempting to "barricade himself" in his own bedroom.
"Steve Bannon has nothing to do with me or my Presidency", Trump declared.
Trump tweeted Friday that he gave "Zero access to White House (actually turned him down many times) for author of phony book!"