Of course, the entire voter data bases need to cross check each other and comprehensive follow up after elections should be happening. State and local elections officials who do not do due diligence in purging dead voters, noncitizens,and multiple registrations that may have resulted in multiple votes should be fined and brought up on charges. They generally have most of the year to keep this current, and they do not, period.
Perhaps the voter registration forms should simply ask you which state registration you are “turning in” to get to vote in a new state?
Your driver license works this way.
That might be viable, but I’m not keen on taking a prospective voter’s word for anything. This whole thing depends on trust, BUT VERIFY, even if that’s after the election.
Florida Voter Resgistration form asks for the prior address you were registered.
I doubt the Registrar of Voter does anything with the info.