Mr. Trump’s suggestion that the elections are “rigged” is both sad and scary. See, e.g., http://www.cnn.com/2016/10/16/opinions/rigged-election-opinion-ben-ghiat/index.html
First, the falsehood is sad because it shows how low politics have sunk if a major party candidate can make such a scandalous allegation.
Second, the falsehood is scary because a number of Trump’s supporters believe him. Just making a scurrilous assertion and getting television coverage of your words do not make the assertion true. Repeating a falsehood a thousand times does not make it truer.