Much being written in the media concerning less-than-complimentary comments Trump made to a Miss Universe winner - Alicia Machado - who gained like 40 pounds. The Clinton campaign has tried to make a "thing" out of it.
Normally, as a circumferentially challenged individual, I don't hold with fat shaming. On the other hand, I've had the good sense to avoid participation in beauty contests where everyone understands having a trim body is a minimum requirement to play the game.
As an owner of the pageant, Trump had every right to expect a successful beauty queen to have the self-discipline to remain trim during her year as Miss Universe. Her failure to do so constituted breach of contract and, rather than dump her, he encouraged her (apparently successfully) to fulfill her contractual obligations. End of story.