So even Mary Trump is a viper. This is quite the family.

In response to a question from The Washington Post about how she knew the president paid someone to take the SATs, Mary Trump revealed that she had surreptitiously taped 15 hours of face-to-face conversations with [Trump’s sister, Maryanne Trump] Barry in 2018 and 2019. She provided The Post with previously unreleased transcripts and audio excerpts, which include exchanges that are not in her book.

She was secretly taping her aunt because she wanted to prove that her aunt had cheated her out of millions of dollars when the president’s father [her grandfather] died in 1999. But she wound up with evidence that Trump hired someone to take his college entry exams. She also got some pretty unvarnished opinions about who Trump really is from his sister, who obviously knows him better than anyone.

I think the important thing is the complete contempt Barry has for her brother’s character. The details are of great interest, but the bottom line is what really matters. Trump’s sister thinks Donald is cruel. She thinks he has no principles. She think he’s unprepared. She thinks he’s only in things for himself.

Maybe the point is made most explicit when Barry says that she doesn’t want any of her brothers to speak at her funeral because she’s still so upset that Donald only spoke about himself at their father’s funeral.

These will be hard things for Trump to hear. It’s a harder message than Barry would likely deliver to his face, and now the whole world knows about it. Sibling relationships don’t survive this kind of hurtful language. As for Mary Trump, she recognizes that she betrayed her aunt by divulging their private conversations and she doesn’t expect to ever speak with her again. So, this whole spectacle has landed like a bomb on what remains of the Trump family. I have to assume Donald Jr., Eric, and Ivanka will take their father’s side, and they probably won’t be communicating with their aunt from here on out.

However, this is not our problem. Our problem is that Trump is still on the ballot and still has a chance to be reelected. What voters need to know is what Trump’s own sister has to say about him: “You can’t trust him.”