That goes double for the more outlandish claims in the book, such as the claim that Trump brought a tanning bed into the White House, an episode where Trump allegedly ate a piece of paper after a meeting and Trump's purported racist comments aimed at Kellyanne Conway's half-Filipino husband.
Manigault Newman's book also alleges how Trump made a farcical effort to sell copies of his book Trump: The Art Of The Deal at his inauguration as President in January previous year. The White House says the book is "riddled with lies and false accusations". Apparently, she's got some secretly recorded audio of Trump that she's already shared with her close friends and will release in her book, which will be called Unhinged.
"It's sad that a disgruntled former White House employee is trying to profit off these false attacks", she said.
The Guardian, which obtained an advance copy of the book, said Newman writes in her book that Trump used "the N-word" while taping "The Apprentice" and that he was caught on camera. "The Art of the Deal is a bestseller!" "Just think how many copies I'd sell - maybe a commemorative inauguration copy?"
She also writes that Trump is showing signs of "mental decline that could not be denied".
After his election she joined his administration as communications director for the Office of Public Liaison before leaving in January.
She also told NPR this week that she heard Trump using the N-word herself, notes The Hill. Early excerpts have been denounced by White House officials, who are launching a concerted effort to discredit their former colleague.