"The Woodward book has already been refuted and discredited by General (Secretary of Defense) James Mattis and General (Chief of Staff) John Kelly", Trump tweeted. "Let's go in. Let's kill the [expletive] lot of them", Mr Trump is reported to have told Mr Mattis.
"The contemptuous words about the President attributed to me in Woodward's book were never uttered by me or in my presence", says the general's statement.
Woodward, the legendary Washington Post scribe, also showcases Trump as a dysfunctional predator, which is a completely familiar portrait to those who've watched and worked with the president over the years.
Woodward is a widely respected and veteran journalist who helped expose President Richard Nixon's role in the Watergate scandal in the 1970s.
"White House press secretary Sarah Huckabee Whatever said that the book is 'nothing more than fabricated stories made by former, disgruntled employees told to make the president look bad, ' " Kimmel continued before adding his own commentary.
The book quotes White House Chief of Staff John Kelly as describing Trump as "unhinged" and calling him an "idiot" who had "gone off the rails".
The President is also said to have lashed out at former NY mayor Rudy Giuliani, now his attorney, and reportedly said he was a "baby" after he appeared on TV to defend Mr Trump over harassment allegations.
According to a tape of a call Woodward made to Trump last month, and released by The Washington Post, Trump accused the journalist of writing a "very inaccurate book" that would not reflect that no predecessor has "ever done a better job than I'm doing as president".
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ALEX BRANDON AP Bob Woodward's tell-all book has outraged the White House
But despite a stellar reputation and numerous attempts to gain access, Bob Woodward hit a wall when he tried to speak to Donald Trump for his latest look at life inside the White House.
Woodward's latest book on a US president is set for public release next week.
On Amazon, Woodward's new book was ranked as the top-selling book on Tuesday. The president called current laws a "sham and a disgrace" following the release of Michael Wolff's book, "Fire and Fury," which also portrayed a White House in turmoil.
Unlike previous books about the Trump White House, Mr Wood- ward's work was extensively researched with dozens of tape interviews with sources, making it harder for the President to dispute the claims. Kelly added that he and the President "have an incredibly candid and strong relationship" and that "he and I both know this story is total BS".
"Let's [expletive] kill him!" She told reporters at United Nations headquarters that she had been privy to conversations about the Syrian chemical weapons attacks, "and I have not once ever heard the president talk about assassinating Assad".
"It's just nasty stuff", Trump said.
"No, it's - it's going to be accurate, I promise", Woodward said.
But Trump's defence here doesn't actually line up with what we know about Woodward's book.
"It's just another bad book".
"It's pointless to try to convince him of anything", Kelly bemoaned in a meeting.
Cohn told a colleague that he stole the letter to protect national security, according to the Post excerpts.