Slate 2016 - mail in voter fraud exists

Voter fraud does happen—but it almost never occurs at the polls. Instead, as election law expert and occasional Slate contributor Rick Hasen has explained, voter fraud occurs through absentee ballots. The vast majority of voter fraud prosecutions touted by conservative groups like the Heritage Foundation involve absentee ballots that were illegally cast. And the only voting fraud schemes with the potential to actually swing elections involved mail-in ballots, not impersonation at the polls. (This makes sense: It’s much easier to forge a signature, impersonate a voter, or buy a vote in the privacy of one’s home than it is in a voting booth at the polls.)

https://slate.com/news-and-politics/2016/09/voter-fraud-exists-through-absentee-ballots-but-republicans-wont-stop-it.html

http://archive.is/V9Crv

Keep moving those goal posts