Hillary Clinton on Wednesday accused Donald Trump of being the most dangerous White House candidate in modern history, ending a sharp debate exchange about their fitness to serve as president.
After Trump used statements by Clinton's primary rival Bernie Sanders and Clinton's campaign chairman John Podesta against her, she retorted: "You should ask Bernie Sanders who he is supporting. He said you are the most dangerous person to run for president in the modern history of America. I think he's right."
The comments came as Donald Trump refused to say that he would accept the election result after making claims this week of "large-scale voter fraud".
"I will look at it at the time," he said.
The billionaire tycoon said the media was "so dishonest" and had "poisoned the minds of voters".
Of Mrs Clinton, he added: "She shouldn't be allowed to run. It's crooked. She's guilty of a very serious crime.
"Just in that respect I say it's rigged. She should never have been allowed to run for the presidency."
Join our new commenting forum
Join thought-provoking conversations, follow other Independent readers and see their replies