A bill that would require people to show documentary proof of U.S. citizenship to register to vote passed the House with some Democratic support.

Washington — The House passed a controversial bill on Thursday that would require Americans to show proof of citizenship in person to register to vote in federal elections, which critics say could disenfranchise millions of eligible voters. Four Democrats joined all Republicans to pass the measure in a 220-208 vote.

Vermont's Democratic secretary of state says Republican legislation passed by the U.S. House that would require proof of citizenship when registering to vote for federal elections is part of a strategy to make voting harder.