Very good idea. Also, since all then will have driver’s licenses, all attempting to vote can be required to show that as the photo ID needed, or the non-driver photo ID option, and all can in future prove their citizenship to ICE at the same time with E-Verify, or something like it: immediate arrest if attempting to illegally vote, deportation within the week after.
When folks go to vote, just yell “La Migra” while at the polling place, then look to see if anyone runs.