Trump Says Mark Burnett Assures Him There Are No 'Apprentice' Tapes of Him Using the N-Word

"I don't have that word in my vocabulary, and never have. She made it up," Trump wrote in a short series of tweets. He then echoed his earlier comments that Omarosa had nothing but praise for him until she was fired, has no credibility and the "fake news" media had no interest in talking to her until she turned on him.

Trump tagged Burnett in the tweet, though the reality television producer has not yet responded with a tweet or comment of his own.

Comedian Tom Arnold, who is launching a new citizen journalism series on Viceland called "The Hunt for the Trump Tapes with Tom Arnold," responded to Trump's latest comments, tweeting "bullshit." He further alleges that he has also spoken to Burnett, and two other producers, who said Trump is lying and confirmed there are "#TrumpTapes."

The president tweeted about his former White House staffer throughout the day on Monday, and retweeted Michael Cohen and frequent CNN contributor Frank Luntz saying that she had lied about them in the book, as well. Omarosa, meanwhile, has spent the past couple of days on a promotional tour for the book, playing snippets from secret recordings she made during her time in the White House.

Trump's latest attempt to discredit her comes after Omarosa claimed to have heard him use the n-word on a recorded tape dating back to his time on "The Apprentice." In her book, she says she only heard second-hand accounts of the tape, claims that Luntz denied, earning him that Trump retweet.

But Omarosa told NBC's "Meet the Press" on Sunday morning that she'd since heard the recording herself. "Once I heard it for myself, it was confirmed, what I feared the most: That Donald Trump is a con and has been masquerading as someone who is actually open to engaging with diverse communities. But when he talks that way, the way he did on this tape, it confirmed that he is truly a racist."

Omarosa further claimed that she was "complicit in deceiving the nation," adding, "They continue to deceive this nation by how mentally declined [Trump] is, how difficult it is for him to process complex information, how he is not engaged in some of the most important decisions that impacts our country. I was complicit, and for that I regret."

The White House has released a statement bashing Omarosa's book, too.

"Instead of telling the truth about all the good President Trump and his administration are doing to make America safe and prosperous, this book is riddled with lies and false accusations," press secretary Sarah Huckabee Sanders said. "It's sad that a disgruntled former White House employee is trying to profit off these false attacks, and even worse that the media would now give her a platform, after not taking her seriously when she had only positive things to say about the president during her time in the administration."

The book's publisher, Gallery Books, a division of Simon & Schuster, said in a statement they are "confident that Omarosa Manigault Newman can substantiate her highly-anticipated account of life inside the Trump White House."

"Unhinged: An Insider's Account of the Trump White House" is in stores Tuesday.