The White House and Trump have pounced on the discrepancy and her reputation as someone who seeks the spotlight in a bid to discredit her. Hogan Gidley, deputy press secretary, said media outlets never took her seriously until she released the tapes.
In a morning tweet, Trump praised his chief of staff, John F. Kelly, for firing Manigault Newman a year ago.
Manigault-Newman, the former communications director for the White House Office of Public Liaison, claimed she heard Trump saying racially derogatory remarks, specifically the N-word, "multiple times" in a three-minute recording.
"She never pulled me aside, never said to me, 'Hey, listen, I heard the president say this and I don't know what to do with it'".
"Look at her MANY recent quotes saying such wonderful and powerful things about me - a true Champion of Civil Rights - until she got fired", Trump added.
Conway said she was disappointed with Manigault Newman, whom she had considered "a colleague and a friend".
"It's unbelievable that for two years these folks have been reaching out to me, and I guess I was in denial", Manigault-Newman added. "The next day there was damage to my reputation because they then put out a story using and exploiting an African-American reporter to say that I was running around the residence and trying to break into a Christmas party, which is ludicrous".
A recording Manigault-Newman secretly made of her firing shows the chief of staff citing 'some pretty, in my opinion, significant integrity issues'.
The action, which the campaign said was filed in NY, comes amid a publicity tour by Manigault Newman to promote her book, Unhinged, which portrays Trump as bigoted and racist and questions his mental capacity.
"Why did she wear a Gucci "pussy bow" pink blouse to the presidential debate immediately after the "Access Hollywood" bombshell?"
What is contained in the remainder of Manigault Newman's tapes is a mystery, at least for now.
"They continue to deceive this nation by how mentally declined he is", Manigault-Newman added, "how hard it is for him to process complex information".
She also managed to spark outrage as she wore a jacket emblazoned the slogan "I really don't care, do u?" written on the back, as she boarded a plane bound for a meeting with detained immigrant children.
In her book "Unhinged", Ms Omarosa commented on the First Lady's decisions and conduct in the White House. "Mr. Trump is a white supremacist, he has surrounded himself with white supremacists, and everything that comes out of that White House is racist".
"I took it all kind of at face value", she said. So too, it turns out, is the conversation which appears near the book's end, between President Trump and his former Apprentice villain after she'd been let go, as he bafflingly expresses confusion over her departure - as if he knew nothing about it. She also declined to discuss details of her interview with special counsel Robert Mueller's office, which she confirmed in a separate interview Tuesday.