This would work but it is different state by state.  Like in my state it is vote by mail which means houses vote not people and you register at the DMV.  You can live in the state have a drivers liscense, etc but if your house is not considered a legal residence by their definition then you can't vote.  Hell, you can't even get MAIL.  Every state has some other fuckery that is required, and manipulated, to keep the Criminals in power.