The Supreme Court has partially granted the Republican National Committee's request to enforce a provision of Arizona law requiring proof of U.S. citizenship when registering to vote. In a 5-4 decision, the Court allowed enforcement of one of three contested provisions, specifically requiring state officials to reject state voter registration forms lacking proof of citizenship. The other provisions, which would restrict voting in presidential elections and voting by mail for those registered without proof of citizenship, remain blocked. The RNC praised the Supreme Court's decision as a victory for election integrity, even though there is no evidence of noncitizens voting in U.S. elections.