'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, ' she said.
Manigault Newman, whose book is out this week, suggested there was more to come: "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 them".
The White House has condemned the former "Apprentice" star previously, and the Republican National Committee blasted her on Twitter over the weekend. She called it false imprisonment.
Omarosa was then transferred to a position at the Commerce Department, where one supervisor described her as "was unqualified and disruptive" in an interview with the Times. "She did work with outreach, she worked with historically black colleges and universities". It features Kelly telling Omarosa her departure from the White House could be a friendly one.
Manigault has tapes of Trump speaking, a person familiar with the tapes said.
Manigault-Newman told NBC News the conversation took place the day after her dismissal.
"General Kelly came to me and said that you guys wanted me to leave", Omarosa responds.
This official says the White House doesn't know everything the former staffer has claimed because it appears they have not seen a copy of the book. I didn't know that.
"I heard his voice as clear as you and I are sitting here", she said on the show.
Her dismissal was announced on 13 December amid USA media reports that she had been fired by Mr Kelly and "escorted out" of the West Wing. But, now that she's a Trump trasher she's "the toast of the town".
NBC's "Meet the Press" on Sunday aired Omarosa Manigault Newman's recording of her firing by White House Chief of Staff John Kelly in December, and she said that she considers what Kelly said a "threat". In it, Kelly argued that there have been "significant integrity issues" that prompted him to fire her.
Pakistan PM-elect Imran Khan invites Navjot Singh Sidhu for swearing
The two parties have made a decision to field joint candidates for posts of speaker, deputy speaker and prime minister. The party needed the support of 172 lawmakers in the house of 342 to form the government.
A former communications assistant, Ms Manigault Newman was sacked by the Trump administration last December. "This is non-negotiable discussion". Her paycheck was among the largest in the building, according to public records, and she remained a highly visible face of the administration.
Newman said she would love for the White House to release her personnel files. "You have to have your own back or else you'll look back and you'll have 17 knives in your back".
"He's being puppeted", she said.
"She never made it, never will", he continued.
"And then to brag about it on national television further proves the lack of character and integrity of this disgruntled former White House employee".
She also writes she turned down an offer from Trump's daughter-in-law to sign a nondisclosure agreement in exchange for a job on the President's re-election campaign paying $15,000 per month. "What kind of ingratitude is this?"
"That in and of itself, deliberately bringing an unsecured cell phone into a [secure facility], would absolutely be a fireable offense", said Bradley Moss, a Washington, D.C. attorney specializing in national security law.
In the book Omarosa only describes hearing about the tape from anonymous sources.
"Had I not recorded this, everyone would say she has a credibility issue", she said.
She also claimed Americans were being kept in the dark about the president's mental decline saying: "I was complicit with this White House deceiving this nation". So the only thing that's changed is that she's now selling books'. Now, she calls him a "racist".