"The incidents are not anonymous".
The book also depicts staffers and advisers as condemning the president behind his back and actively working to stymie some of his actions, even hiding documents from Trump.
According to reports, Donald Trump has been quoted by senior journalist Bob Woodward that PM Modi during his meeting with Donald Trump had raked the Afghanistan issue and told him that United States got nothing from Afghanistan.
The book, titled 'Fear: Trump in the White House, ' is written by the investigative journalist who uncovered the Watergate scandal that brought down former US President Richard Nixon in the 1970s.
But Woodward says in his book there was an even more risky tweet that wasn't sent, declaring that Trump was withdrawing the family members of US troops from South Korea. Woodward said the president's staff tried to explain that this is a defensive measure. "... I think you need to measure a presidency by what actually is done on the issues that affect people".
But, the president is no stranger to women accusing him of misdeeds. At least 19 women have publicly accused Trump of kissing them, touching them inappropriately or having an affair with him while he was married.
"I've never seen instance when the president is so detached from the reality of what's going on", Woodward said.
Woodward replied that these "political statements", denying the quotes in the book, were designed "to protect their jobs".
Mattis called the book "the product of someone's rich imagination".
"To be clear", he wrote in a subsequent tweet, "a number of the statements attributed to me and from others to me in the Woodward book are incorrect".
Fear is set to be released on September 11, and as of Tuesday morning was already the fifth best-selling book on Amazon for the year, just ahead of former FBI Director James Comey's A Higher Loyalty.
"I'm not, because I know what I did, and I'm not anxious about it", Trump Jr. said.
Christie has rebutted Woodward's claims.
Woodward, one of America's most famous journalists whose own use of unnamed sources has drawn criticism, said when promoting his book on "CBS Sunday Morning" that he did not know the author ofthe Times column, but that it was "too vague" and "does not meet the standards" to be published.