According to the book, Mattis also had to rein in US policy after a phone call in which President Trump supposedly ranted about wanting to "f-king kill" Syrian President Bashar al-Assad.
"In serving in this administration, the idea that I would show contempt for the elected Commander-in-Chief, President Trump, or tolerate disrespect to the office of the President from within our Department of Defense, is a product of someone's rich imagination", he added.
The book sold more than 750,000 copies on its first day of publication and broke Simon & Schuster's preorder sales record. "Fear" had more pre-orders than any in other book in Simon & Schuster's history, according to the publisher, which has previously released such best-sellers as Hillary Clinton's "Living History" and Walter Isaacson's "Steve Jobs".
"The only people who refer to being paid off as wanting "extra shekels" are Israelis speaking Hebrew and anti-Semites speaking English outside Israel". The book quotes anonymous sources.
"Fear" has dominated political headlines since reports about it emerged last week.
"But don't you think people look through the fact that you can write a sensational, nonsense book, CNN will definitely have you on there because they love to trash the president?"
Another factor that proves the news is fake is Woodward's tweets about President Donald Trump. Some dilapidated White Home officers who spoke with Woodward like tried to distance themselves from the guide.
Woodward stands by his reporting, which paints a picture of a dysfunctional Trump White House and a novice president who is often at odds with top officials in his administration.