 The Supreme Court decided that Afroyim's right to retain his citizenship was guaranteed by the Citizenship Clause of the Fourteenth Amendment to the Constitution.In so doing, the Court struck down a federal law mandating loss of U.S. citizenship for voting in a foreign election—thereby overruling one of its own precedents, "Perez v. Brownell" (1958), in which it had upheld loss of citizenship under similar circumstances less than a decade earlier.The "Afroyim" decision opened the way for a wider acceptance of dual (or multiple) citizenship in United States law.