He added: "What they mean by that is he has the need for instant gratification. It is all about him".
She also said she supports President Donald Trump and the platform upon which he ran. I never spoke to him for book.
Asked to clarify what he meant when he wrote that Mr Trump's entire circle questioned his fitness for office, Wolff said, "Let me put a marker in the sand here: 100 per cent of the people around him".
Meanwhile, Wolff's actual book contains several claims that appear outrageous on the surface. Every copy was gone before the store closed at 1 a.m.
Michael Wolff's new book chronicling dysfunction within the Trump Administration was released Friday morning, drawing Harry Potter-style crowds at Washington, D.C. bookstores and ire from the White House.
Trump said Wolff fabricated stories to sell his book, using "Sloppy Steve Bannon" along the way. I can't answer that but I can only say it is a subject discussed in the White House. Instead, it began sales early. "Saw him there. And shortly thereafter, Jared Kushner and Steve Bannon got into a car, went out to Langley to see the director of the CIA and the deputy director, and to ask about these things that Tony Blair had told the president".
Then Trump imposed a set of new rules, Wolff writes: "Nobody touch anything, especially not his toothbrush".
A lawyer representing Trump also issued a notice to Wolff and his publisher in an attempt to block the book from "further publication, release or dissemination".
The new fissure in an already fractious Republican Party cast doubt on Mr Bannon's hopes of fomenting a movement centred on "Trumpism without Trump".
Wolff claims that the president has a low opinion of the intelligence of his other sons - Donald Jr. and Eric - saying, "Their father took some regular pleasure in pointing out that they were in the back of the room when God handed out brains".
The book infuriated Mr Trump in part by quoting Mr Bannon making derogatory comments about the President's children. On Friday afternoon, as he left the White House for a weekend at Camp David, he ignored shouted questions from reporters about whether he had read the book himself yet. Trump cited his career in business and reality television and his victory in last year's election as evidence of his mental prowess.