Conservative writer Bre Payton said on Monday that it was a mistake for President Trump Donald John TrumpSteele Dossier sub-source was subject of FBI counterintelligence probe Pelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Trump 'no longer angry' at Romney because of Supreme Court stance MORE to hire Omarosa Manigault-Newman, referring to her as "a reality TV star villain."

"I think it is very obvious that she is not credible. I think the fact that she recorded people supposedly in the Situation Room, supposedly in the White House, all throughout her tenure, and is using that to kind of leverage coverage for her book because no one wants to cover this, I think says a lot about her credibility, which is that she doesn't really have any," Payton, who writes for The Federalist, told Hill.TV's Buck Sexton and Krystal Ball on "Rising."

"I do think, however, that it was a mistake to hire a reality TV star villain," she added.

Manigault-Newman, who appeared on the first season of "The Apprentice" with Trump and then two subsequent offshoots of the series, is in the midst of a media tour to promote her memoir, "Unhinged," which includes a series of explosive claims about the president.

She released a recording on Monday, which appears to be a phone conversation with the president in which he acted surprised about her firing.