I think the more salient point is that there is voter fraud to an extent that it does, in fact, make a difference. The left has spent a good six years trying to deny voter fraud exists and that if does exists, it makes so little significance as to not be worth checking voter's IDs. Perhaps we can see an end to that canard.
The documentation indicates that there is very little voter fraud, not "trying to deny". You don't have to deny what is not going on.
There have been several examples of electoral workers forging names on petitions and registration cards. This was the crux of the GOP led ACORN campaign.
Anyone who knows anything about election law, knows that the signatures are checked against records by election officials as a matter of law. So, they would not have been counted at all.
Of course, in the 2012 cycle, operatives employed directly by the RNC were caught doing the same thing in Virginia. When the story broke the RNC quickly fired the operative, who then recieved contracts from several state GOP committees to continue the work.