But on Tuesday morning following the release of the audio by CBS, Pierson amended this, saying she was simply humoring Manigault Newman's "obsession" with this alleged Trump "N-word" tape, and likened it to entertaining a "crazy" conversation from a friend or relative.
But she did sign one as a Trump campaign official - and the Trump campaign has said it may sue, arguing she has breached a non-disparagement clause.
The legal action is being filed with the American Arbitration Association, a campaign aide told the Associated Press.
"The sad thing is as we saw with 'Access Hollywood, ' it probably won't impact his base, I think their support is baked-in, but I think it does expose him for the racist that he is", she said, adding that the "truth matters". And Trump's campaign said that in the 2016 race she "signed the exact same NDA that everyone else on the campaign signed, which is still enforceable". He also claimed that other White House staff "hated" her and that she was "vicious, but not smart".
What's in the Omarosa tapes?
Trump and Omarosa pictured in 2016.
She held the role as director of communications for the Office of Public Liaison in the Trump administration from January to December 2017. The White House is basically a reboot of The Last Supper: "Oops All Judases". That might sound more friendly but make no mistake; the Trump campaign team want Omarosa silenced.
Manigault Newman says she considered the statement a "threat".
What perhaps worries the Trump team most is they can't be sure what else she surreptitiously recorded.
Omarosa also proceeded to inform me that she had officially submitted her resignation to General Kelly and that I should promptly do the same before the audio surfaced. Mr. Trump came to office vowing to hire "only the best people" - but has struggled to put a lid on leaks, incompetence, backbiting and scandal inside his White House.
The photographer has enjoyed jabbing Trump side since before his election and has regularly posted images meant to negatively contrast the Trump administration with former White Houses. "And the bottom line is that yes, she was complicit, but she was doing all this knowing that there was going to be a payoff in the end for her, and then once she got upset with him or he got upset with her or whatever happened, she decides to turn on him".
How has the president reacted?
Viewers slammed the former White House aide hard for her outfit, which seemed to cause more controversy than her scathing tell-all about working under President Donald Trump in her new book Unhinged, which she was promoting. On Manigault-Newman's tape of the conversation, released Sunday, Kelly is heard citing "significant integrity issues" as the reason for her firing.
Mrs Newman has known Mr Trump for nearly 15 years, and appeared on several seasons of The Apprentice, where she was known to viewers as the programme's "villain".
"I loved him [talking to her] on the phone".