This proposed legislation, the Exclusive Citizenship Act of 2025, aims to establish that United States citizens must hold sole and exclusive allegiance to the U.S. Congress asserts that undivided allegiance is essential for national citizenship integrity, finding that existing dual citizenship can create conflicts of interest and divided loyalties that are not in the national interest. The bill explicitly prohibits individuals from simultaneously possessing U.S. and foreign citizenship . For current dual citizens, it mandates that within one year of the Act's enactment, they must formally renounce either their foreign citizenship to the Secretary of State or their U.S. citizenship to the Secretary of Homeland Security. Failure to comply with this requirement, or the future voluntary acquisition of foreign citizenship, will result in the individual being deemed to have relinquished their U.S. citizenship. The Secretary of State is directed to promulgate regulations for the Act's implementation, including procedures for verification and recordkeeping of exclusive citizenship. This also involves coordinating with other agencies to ensure individuals who relinquish citizenship are appropriately recorded in federal systems and treated as aliens for immigration purposes.