The Kentucky senator, who is ahead in surveys for his own re-election bid, was asked on, "The Tom Roten Morning Show," an 800 WVHU West Virginia radio program, about Clinton's national polling lead when he made the comment.

"You know, I think sometimes polling is done to dampen election turnout so when Trump says the thing's rigged, I'm not sure exactly what he means and I'm not sure I always agree with him," Paul said. "But I do think that when we say over and over someone can't win that is a form of rigging in the sense that it is designed to suppress turnout."