This legislation aims to amend the National Voter Registration Act of 1993 to ensure that only United States citizens can register to vote in federal elections, thereby enhancing the integrity of the voting process. A central feature of the bill is the requirement for individuals to provide documentary proof of U.S. citizenship when registering to vote. Acceptable forms of proof include a valid U.S. passport, military identification, government-issued photo IDs, and certified birth certificates. States are mandated to process voter registration applications only if this proof is presented.