Our olympic athletes. Michael Phelps or Katie Ledecky will fall morbidly ill and miss his or her games, and Trump will mock them on stage for being dummies because if he was in their place he would have known better than to go to Rio. He'll also kick Brazil while it's down and claim he could have done the greatest Olympics ever.
Sticking to this theme, trump might also be handed an Olympic Medal from an athlete as a gift, and trump will say something stupid, like ...... (insert your thought here).
"That didn't take much training at all!"