Katrina Pierson told Ed Henry Tuesday night that former White House adviser Omarosa Manigault Newman is not being truthful about a 2016 conversation about President Trump using the N-word.

Manigault-Newman, a former Trump aide who is promoting her new tell-all book about her time in the administration, has made a series of salacious allegations about the president, including that there is a tape of him using the N-word during her time on "The Apprentice."

Manigault-Newman also claimed that in an October 2016 phone conversation, she and other Trump campaign staffers -- Pierson, Jason Miller and Lynn Patton -- discussed the existence of the alleged tape.

On Tuesday morning, Manigault-Newman released a secret recording of the alleged call to CBS News.

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In it, Pierson appears to say of Trump's alleged use of the N-word, "He said it. No, he said it. He’s embarrassed.”

Pierson released a statement to Fox News on Tuesday, saying she was merely trying to "placate" Manigault-Newman because she was weary of her "obsession" over the existence of the tape.

During the 2016 campaign, we heard rumors about an alleged tape from “The Apprentice.” It’s clear now that those rumors were always being circulated by Omarosa and her alone. In her secret tape recording of me, it was one of many times that I would placate Omarosa to move the discussion along because I was weary of her obsession over this alleged tape. To be clear, I never organized a conference call with Jason Miller to confirm Mr. Trump said anything. That discussion was nothing other than sifting through unconfirmed rumors regarding the Apprentice tape and the transcript supports my statement. Omarosa fabricated the story by conflating numerous discussions.

She later said on "Fox News @ Night" that CBS News got "played" by Manigault Newman, accusing her of "conflating" two separate recordings.

Manigault Newman told CBS that a person in California has allowed her to listen to the recording of Trump since writing the book. She said had she known about it, she would have left the White House “immediately."

Pierson, in a contentious exchange with Henry, adamantly refuted Manigault Newman's claims that she confirmed the existence of the N-word tape. Henry pressed Pierson, asking why her story has changed from an interview on Monday. 

Trump’s campaign organization on Tuesday filed for arbitration against Manigault-Newman, claiming that she broke a 2016 nondisclosure contract by disparaging the president in her new book and on her promotional tour and by revealing private talks from the White House Situation Room.

Watch the full interview with Pierson above.

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