A campaign official said the action was filed with the American Arbitration Association.
During an appearance on Tuesday morning (Wednesday NZT) on Fox News, White House counsellor Kellyanne Conway did not directly answer a question about whether Trump's use of the term "dog" was appropriate.
Nevertheless, the tapes have only deepened a pre-existing sense of paranoia among Trump staffers, according to senior administration officials, fueling an underlying suspicion that everyone inside the West Wing is out for themselves. In a 2015 debate among Republican presidential hopefuls, moderator Megyn Kelly asked the then candidate about his habit of referring to women as "fat pigs, dogs, slobs, and disgusting animals".
The watershed moment came, it appears, in the months after Trump appointed Gen. John Kelly as his chief of staff.
[MUSIC] I can't expand upon, because I have to still go back to work with these individuals, but when I have a chance to tell my story, Michael Quite a story to tell.
Melania infamously sparked outrage after wearing a jacket with the words "I really don't care, do u?" on a flight to meet detained immigrant children. She said she'd been interviewed by special counsel Robert Mueller's office, but would not discuss details.
But it wasn't about that if you ask Omarosa Manigault Newman. "And as a result, I resigned", she said. "I am very interested in exposing what was happening behind the scenes".
Pierson's explanation was one in a series of shifting accounts about the Trump campaign's worry over the purported "Apprentice" tape. Trump said Monday on Twitter that he doesn't "have that word in my vocabulary, and never had". CBS said it has not confirmed the authenticity of the tape.
Mrs Newman - a former star of The Apprentice who was sacked after a stint as a White House adviser - claimed that Mr Trump was recorded using the word while working on the show he hosted for 11 years.
LTo the many dozens of #journalists who called me, questioning @OMAROSA claim in her new book that @POTUS @realDonaldTrump took a note from me, put it in his mouth and ate it.I saw NO such thing and am shocked anyone would take this seriously.
Trump officials and a number of outside critics denounced the recordings as a serious breach of ethics and security - and White House aides anxious about what else Manigault Newman may have captured in the West Wing. But Manigault Newman said he "probably instructed General Kelly to do it". "Omarosa, how can you say that about the president three years after we all said that about the president", he joked.
She added that the remarks were made in reference to Kwame Jackson, an African American contestant on the show. "The president is an equal opportunity person that calls things like he sees it".
Manigault Newman's exit does highlight the lack of diversity among Trump's top aides. At the time, a White House spokesman disputed the dollar figure but otherwise declined to comment.
In her book, Unhinged, and the accompanying tour, Manigault Newman has been harshly critical of the president, calling Trump a racist and suggesting that he suffers from dementia. He also has targeted black NFL players for kneeling in social protest during the national anthem.
"He had to protect himself from allegations that would come up, both personal and business", said Sam Nunberg, a former Trump campaign aide.
But then again, maybe that is why his campaign team got her to sign a confidentiality agreement in the first place. Mr. Trump seemed to acknowledge that the unseemly fight would have been unusual for most of his 44 predecessors as president of the United States. She lied on me, telling people that I was taking money from Hillary Clinton to hurt my career. Trump himself used the tactic in his life as a private businessman and the question of whether he's taping his conversations in the Oval Office arose a year ago when he suggested there might be recordings of an encounter with former FBI Director James Comey (none ever materialized).