Isn't it possible for a VA college student to be registered to vote in VA and apply for an absentee ballot, and also register to vote in CT when he's studying there, even if there's no same day registration ? There are no cross checks between the states anyway on who is registered in which state to vote, so a voter with 50 homes in 50 states could theoretically be registered to vote in every state and vote in every state ... (?)
Stop making sense.
Of course, there's all sorts of wacky stuff. MA allows a driver's license as proof of citizenship for registration .... and gives driver's licenses to illegal immigrants.