anonymous: There are two types of fraud at issue. One is voter fraud - when an individual tries to vote despite being ineligible (for whatever reason), or tries to vote more than once or in more than one location. The other is election fraud - when an election official puts invalid data into the official count or voting machines are rigged, etc. The first, voter fraud, flatly doesn't happen on any basis that would make a difference in any election. There are random isolated instances in every election, but they are completely statistically insignificant. The second, election fraud, DOES exist, and IS a problem, and is more often used by Republicans than Democrats - hence why Karl Rove in 2012 flatly refused to believe that Ohio went for Obama - because he knew the fix was in and how could Romney have failed? See also the Walker recall election in Wisconsin (not to mention the actual elections that put him in office, but the recall in particular was bad) when the Waukesha county clerk blatantly hid bags of ballots in the trunk of her car and got caught using a rigged spreadsheet.