"I'm afraid the election is going to be rigged, I have to be honest," Trump told the audience, making reference to how Bernie Sanders lost because his primary race against Clinton was also rigged.

Trump said that he was only able to secure the Republican nomination because he won in "massive landslides," suggesting that the same margin of victory might be necessary to overturn Hillary's dirty tricks in the general election.

During a later appearance on Sean Hannity's Fox News show, Trump repeated his warning, stating, "I've been hearing about it for a long time, and I know last time there were precincts where there were practically nobody voting for the Republican….a lot of people were curious – how is that possible?"