Again, you split hairs.  Few differentiate between Voter Fraud and Election Fraud.  Applying my comment to your narrow definition - your "evidence" is statistical noise.  Just one example:  I personally have "worked the phones" to get registered voters out to the polls.  Often, the party answering the phone, would respond, "s/he is attending school in XYZ".  On most college campuses, there are active "get out the student vote" campaigns. Since the students are unaware or unconcerned and receive encouragement, so they also register at school.  I can't say how many vote in both places, but the cross checking outside voting jurisdictions, certainly across state lines, is extremely seldom, so this type voter fraud is hardly every detected, thus they have no reason to be too worried!

Colorado has all mail voting, a much easier task for either Voter Fraud or Election Fraud.  Have you compared the signature on your voter registration to your current signature?  Hardly a secure system!