In a joint survey by the Associated Press and NORC Center for Public Affairs Research, over 70-percent of respondents said they were concerned about voter fraud in U-S elections. The poll found a great division among Republican and Democratic supporters on the issue. About half of Republicans, but only about one-quarter of Democrats complained about voter fraud. The survey comes just weeks ahead of the November Eight vote that will pit Republican nominee Donald Trump against his Democratic rival Hillary Clinton. Trump has made unprecedented claims of vote rigging. He repeated the charge in Michigan on Friday and urged his supporters to remain vigilant about any such attempt.