This question was taken on by Kobach in Kansas - he spent millions of $$$ and researched people voting who shouldn’t and only 2 people out of the state were caught both were Republicans and were registered in 2 states. This question had been brought on by the rhetoric by Trump that non Americans are coming to vote. That is CRAZY. No one can vote if they have not REGISTERED. IF THE PERSON HAS THEIR REGISTRATION THEY SHOULD BE ABLE TO VOTE. This is a way to keep citizens from voting just like Gerrymandering and closing voting places or moving them.