"They should be concerned about putting out information that's not true".
BookPeople received their normal amount of new copies of the book but wasn't prepared for the book to sell-out.
White House aides have depicted the book as a work of fiction.
US President Donald Trump has defended his mental capacity, insisting that he's a "very stable genius".
And of course that picture of Trump playing tennis.
However, Wolff said Friday on NBC's "Today" show that he had talked to the president for the book.
Sanders says staffers now see a side of Steve Bannon that is "very, very disappointing".
Reagan, a Republican who was the US president from 1981-1989, was diagnosed with Alzheimer's disease in 1994 and died in 2004.
"I absolutely spoke to the president".
Excerpts from "Fire and Fury" began to appear online earlier this week, leading to a break between Mr. Trump and his onetime chief strategist, Stephen K. Bannon, who is quoted in the book calling Donald Trump Jr.'s actions during the campaign "treasonous" and "unpatriotic" and insulting Ivanka Trump. Colbert joked. "I agree with Steve Bannon?". Twitter, on the other hand, is mercilessly mocking the president over his latest "epic tantrum" saying his rants only "make the book seem plausible".
"Fire and Fury" had been set to be released January 9.
"I authorized zero access to White House (actually turned him down many times) for author of phony book!"
President Trump was active on Twitter early Saturday. Kimmel asked of Trump. "I can see several places in the book that are wrong". The Wall Street Journal reported that the owners of the publication were debating Bannon's future on Wednesday. The publisher instead moved up the release date to Friday. White House staffers have told reports that in the past. Tell me about it. I have girls coming in from Los Angeles at three o'clock.
His Press Secretary, Sarah Huckabee Sanders, dismissed the book as being "complete fantasy and full of tabloid gossip", from "an author no one had ever heard of before".