assertion has been questioned by allies of President Trump, who said that she was selling a book, Unhinged, in which she claimed only to have heard that a tape existed.
"I think it's important to understand that if we make this a friendly departure, we can all be, you know, we can look at your time here in the White House as a year of service to the nation".
But speaking on the NBC show Meet The Press yesterday, Ms Newman said that she had heard a tape of Mr Trump using the "n-word".
Former White House aide Omarosa attacks President Trump in her new tell-all book; Siraj Hashmi of the Washington Examiner weighs in. I just saw in the news that you're thinking about leaving.
Manigault Newman also wrote in the book she was offered $15,000 a month contract to sign a nondisclosure agreement after she was sacked from the White House previous year, which she said she turned down. And she went so far as to try to go after me. The criticism comes amid her claims that she has secret recordings of West Wing conversations - including a conversation inside the Situation Room.
"Absolutely", replied Manigault-Newman.
The former aide to President Trump did not specify exactly when the tape was purported to have been recorded, but said it was from the POTUS' time as the host of the corporate reality TV show The Apprentice.
Others are being denied by the White House, some more forcefully than others; a description about the drama of installing a tanning bed in the White House residence is untrue, officials insisted, claiming there is no such apparatus in Trump's home.
She says when she turned down the offer, she received letters from Trump's lawyers telling her to stay quiet.
At an event on August 11 President Donald Trump told reporters "She's a lowlife", when asked about Newman, who first rose to prominence on "The Apprentice" series.
Ms Newman justified her action by saying that she had felt the need to protect herself.
"There's a lot of very corrupt things happening in the White House, and I am going to blow the whistle on a lot of this", Manigault Newman said. The president told her that he didn't know what had happened, and he described the White House as a big operation.
And she took issue with the way in which the meeting to discuss her departure from the White House was handled, telling NBC's Savannah Guthrie, "It's not acceptable for four men to take a woman into a room, lock the door, and tell her that she can not leave".
White House officials and Trump have portrayed Newman and Cohen, who is under investigation in NY, as disgruntled and discredited figures.
She added: "Is General Kelly running this country, or is the president running this country?"
Her new book, full of details critical of the Trump White House, is sure to sell more than a few copies, he suggested.
"Being used by Donald Trump for so long I was like the frog in hot water".