Well let's see. First you vote early, and then you vote on Election Day. That's 2 votes you cast. Throw in an absentee ballot and there ya' go. 3 votes! Do you honestly think every multiple vote will be caught and disallowed?
This could be in the Top 5 of stupidest posts ever. With Republicans in every state they control crying about "voter fraud", they would be having press conferences every day if happened even once.