A sweeping election bill known as the Safeguard American Voter Eligibility (SAVE) Act is moving through Congress and could significantly change what Americans need to do in order to vote in future federal elections, potentially requiring millions of voters to present new documentation to register or cast a ballot. If the SAVE Act is passed , it would mean millions of Americans would need to provide proof of their U.S. citizenship and photo identification, according to USA Today . The measure is