The reason you do not understand how anyone could verify a signature on a mail in ballot is because you have preconceived ideas about mail in voting due to your consumption of right wing media. Pretty simple really. The signature on file for me did not have enough similarities to satisfy the person who verifies them. I was then sent a form with several options to prove that it was indeed me voting. I chose to send them a copy of my utility bill and sign an affidavit. Works slick as could be.

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