it was a trap question, if he said he would accept the results it would have been a green light to Hillary’s minions to commit mass voter fraud and dirty tricks, as it is they have to realize what they do is subject to scrutiny...and if they fail they will likely go to jail...
Trump is giving a warning to those inclined not to try their crap as they will be the ones going to jail and if illegal deported.
He can afford to sue them in civil court. I love him for his enemies.
Of course it was, and his answer to Chris Wallace was perfect.