Watch him describe Hillary Clinton:
"'She is a totally unhinged person,' Mr Trump said of his Democratic opponent at a rally on Saturday. 'She's unbalanced. And all you have to do is watch her, see her, read about her.'"Then, watch what he claims about the election:
"The election, Mr Trump warns, could be nefariously tilted against him.
'I'm telling you, November 8th, we'd better be careful because that election is going to be rigged,' he said in an interview last week. 'I hope the Republicans are watching closely, or it's going to be taken away from us.'"I know from my own social media feeds that many Trump supporters legitimately believe that the polls are rigged. The media is rigged. The narratives are rigged. The electoral process is rigged. Everything is rigged against Trump.
It's a theme that started with the Bernie Sanders campaign, and now Trump has run away with it. First, the existence of super-delegates meant that the system was "rigged" against Sanders. But then, when he was resoundingly losing the popular vote, the elected delegates, and the majority of states, his campaign pondered trying to switch super-delegates to thwart the will of the voters.
It's not so much that people mind "rigged" systems. It's more that they mind when the systems are not or cannot be rigged in their own favor.
Which brings us back to Trump. If that man is claiming the election is going to be rigged, I think there's a decent chance he's the one trying to rig it.