Exclusive Citizenship Act of 2025

This bill would require U.S. citizens to hold only one citizenship, prohibiting dual nationality. It directly affects current U.S. citizens who also hold foreign citizenship, mandating they renounce either their foreign citizenship or U.S. citizenship within one year of the law's enactment (Section 4(c)). Those who fail to comply would automatically lose U.S. citizenship under existing law (Section 4(c)(2)). The bill also prohibits acquiring foreign citizenship while retaining U.S. citizenship after enactment, with automatic loss of citizenship for such acquisitions (Section 4(b)). It directs the State Department and Homeland Security to implement procedures for verification and recordkeeping within 180 days of enactment (Section 5).