"Let's kill the [expletive] lot of them", the president reportedly said.
Regarding the fraught relationship between the president and his chief of staff, the Post reported Woodward found that Kelly "frequently lost his temper" over Trump, and that he thought the president was "unhinged".
Furious over an article, allegedly penned by a senior official who claims to be a part of the White House resistance working against Trump, the United States leader has urged the New York Times to reveal its "phony" anonymous source.
The administration found in Woodward's book is one racked with anxiety over the president's erratic behaviors, where everyone is a potential target of Trump's belittlement.
"They don't like Donald Trump and I don't like them because they're very dishonest people", the president told reporters.
"The contemptuous words about the President attributed to me in Woodward's book were never uttered by me or in my presence", Mattis explained, "While I generally enjoy reading fiction, this is a uniquely Washington brand of literature, and his anonymous sources do not lend credibility".
USA ambassador Nikki Haley denied that Mr Trump had ever planned to assassinate Mr Assad. The President needs to be one of the adults!
The book from the Washington Post author is out September 11. McConnell says he won't discuss "observations by these apparent sources" Woodward used about Trump.
The book is being considered the ultimate report on what happens inside the White House. "We took care to preserve our interests", Katz said. "It's just made up", he told the Daily Caller.
Trump treated top aides with scorn, the book says, telling Commerce Secretary Wilbur Ross that he was past his prime and calling Attorney General Jeff Sessions "mentally retarded". In the call, Trump at first acknowledges that Woodward is "fair".
Trump labelled the piece a "gutless editorial" and "really a disgrace", in remarks made during an event with sheriffs at the White House. It is based on accounts given by Trump's closest aides, who are often quoted as calling the president an "idiot" and a "liar".
The Times' op-ed comes on the heels of excerpts of a new book by Bob Woodward, the journalist who helped bring down Richard Nixon with his reporting on Watergate. But also, it shows people close to the president trying to protect him from himself - from his worst instincts - and protect the country from him, whether it was ending a trade deal with South Korea that they thought would damage USA national security, starting a war with North Korea or sitting down for an interview with Bob Mueller.
Mr. Woodward's book is the latest to throw the Trump administration into damage-control mode with explosive anecdotes and concerns about the commander in chief. "So I have another bad book coming out".