Donald Trump has been talking a lot about rigged polls and the idea of a rigged election come November. We came to Greenville, North Carolina, where he's campaigning, to ask his supporters if they're worried about a rigged election and what they'll be watching for at the polls.
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Trump supporters are far less likely than Clinton backers to think their vote will be counted accurately in the election. And Trump has gone a step further, asking his supporters to actively monitor the polls for suspected voter fraud.
Fortunately, we have data. And it tells us that voter fraud at the polls is actually a really, really rare thing. A 2014 study at Loyola University found only 31 credible cases of voter fraud out of 1 billion ballots cast, which raises the question, why are voters so worried about it?