Omarosa Manigault Newman, the reality show villain who campaigned for Donald Trump and followed him into the White House, is an amoral, dishonest, mercenary grifter. This makes her just like most people in Trump’s orbit. What separates her from them is that she might be capable of a sliver of shame.

Naturally, Manigault Newman’s new book, “Unhinged: An Insider’s Account of the Trump White House,” is self-serving, a way to avenge her 2017 firing and make money telling us what we already know about this wretched administration. Nevertheless, she had other options for cashing in. She has revealed that she was offered a $15,000-a-month position on the Trump re-election campaign in exchange for keeping her mouth shut. She could have had a career in right-wing media; an African-American celebrity willing to say that the Republican Party isn’t racist will always find patrons.

Instead, she chose to speak out against the man who made her a star, and repent for her complicity in electing him. She may be a manipulative narcissist, but she’s behaving more honorably than any other former Trump appointee.

That’s not a high bar, and I wouldn’t take most of the claims of “Unhinged” at face value. But we don’t have to, because Manigault Newman has receipts. When I got a prepublication copy of the book on Friday, I wasn’t sure what to think of the scene in which Trump’s chief of staff, John Kelly, fires her, making thuggish threats to destroy her reputation if she doesn’t go quietly. On Sunday, “Meet the Press” played her recording of the exchange, which unfolds exactly as she described.