Author Michael Wolff: Trump Has "Less Credibility Than Perhaps Any Man Who Has Ever Walked On Earth"

Speaking with The Today Show's Savannah Guthrie, author Michael Wolff defended his new book Fire and Fury: Inside The Trump White House saying he stands by "absolutely everything" he wrote in the explosive expose.

“I absolutely spoke to the president. Whether he realized it was an interview or not, I don’t know, but it certainly was not off the record,” said Wolff, author of "Fire and Fury: Inside the Trump White House," which was published Friday, four days ahead of the original release date after headlines about the book generated massive interest.

Wolff said he spent about three hours with Trump, both during the campaign and after his inauguration, for his book. But he also spoke to his key aides, “people who spoke to the president on a daily, sometimes minute by minute basis.”

"My creditably is being questioned by a man who has less credibility than perhaps anyone who has ever walked on Earth at this point," he said.

"I have recordings, I have notes, I am certainly and absolutely in every way comfortable with everything I have reported," he said, noting that after writing "millions" of words in media columns and other books, "I don't think there has ever been one correction."

Watch Wolff's full interview below.

By the way, Trump says he never authorized Wolff's access to the White house or spoke to the author. And yet, Wolff visited and interviewed White House staff for months.

How can Trump keep America secure if he can't keep his own White House secure?

I authorized Zero access to White House (actually turned him down many times) for author of phony book! I never spoke to him for book. Full of lies, misrepresentations and sources that don’t exist. Look at this guy’s past and watch what happens to him and Sloppy Steve!

— Donald J. Trump (@realDonaldTrump) January 5, 2018

Say what you will about the myriad failings of @realDonaldTrump, but his literacy campaign around #fireandfurybook is a smashing success, not since Harry Potter have so many Americans been reading so intently.

— Jonathan Schultz (@NilVeritas) January 5, 2018