Trump had bad grades at Wharton. One of his professors said he was the stupidest student he ever taught. Trump threatened to sue the school if they released his transcript.

Donald Jr. was a fall-down drunk in his undergraduate years.

If you watch the video again, Ivanka's body language says (to me) "You're the smart one, brother. I hope you can come up with the right answer." Didn't happen. The Trump legend in full effect.