Oh,Pretty Ex-Girlfriend to be the spawn of Donald Trump. His son Donnie Jr. has been rightly slammed for meeting with Russian lawyers, posing with a dead elephant, and just generally being the worst.

Well, his mother, Ivana Trump, dropped some clues as to why Lil' Don is such a turd with her new book, Raising Trump.

In it, she recounts this heartwarming family memory:

When Donald arrived in a boardroom, or took his seat on an airplane and the door closed, that was that. If you weren't on the inside, the meeting or the flight would start without you. Donald once left Don Jr. standing on the tarmac for being five minutes late to the airport.

Harsh! And then, on Good Morning America, Ivana recalled Donald Trump Sr. not wanting to give his son his name.

"I said, ‘Why not?’” Ivana said. "He said, 'How about if he’s a loser?'"

Uhhh, sorry to break it to you, Mr. President ...