Trump has said repeatedly in the last few weeks that he fears the election is rigged. Tonight he accused Clinton of being a criminal and said she should never have been allowed to run, then claimed that millions of voters were inappropriately logged on the nation's voter rolls. (Experts widely agree that the instances of actual, proven voter fraud in the U.S. are vanishingly slim.)
Which led moderator Chris Wallace to ask whether Trump would accept the election results, noting that the nation has a tradition of peaceful transfer of power.
"I will look at it at the time," Trump said. "I'll keep you in suspense."
"That's horrifying," Clinton said, adding later: "He's talking down our democracy, and I, for one, am appalled."