Reports of the bombshell allegations in the book against Trump caught fire this week, including her calling him a "racist", "misogynist", and a "bigot" alongside accounts of him using a racial slur on the set of The Apprentice, and eating a piece of paper in the Oval Office.
On Saturday, reporters asked the president while on his golf course if he felt betrayed by Manigault Newman: "Lowlife".
She recalls him saying: 'Omarosa, what do you think about me getting sworn in on The Art Of The Deal?'
Manigault Newman also reportedly secretly recorded Trump, then used those recordings as leverage while shopping her book.
Newman, who once worked in U.S. President Bill Clinton's administration, initially rose to fame as a contestant on Trump's reality TV show "The Apprentice" in 2004.
Manigault Newman went on to become Assistant to the President and Director of Communications for the Office of Public Liaison.
"During production he was miked, and there is definitely an audio track".
She says that during his time at The Apprentice Trump used the N-word "multiple times" and, according to three sources she knows, there is a tape to prove it.
White House press secretary Sarah Sanders said: 'This book is riddled with lies and false accusations.
But CNN reports that The White House has called Omarosa a "disgruntled former employee" who is trying to make a buck off of fake stories.