Ohio Sen. Moreno Bills Ban on Dual U.S. Citizenship

Ohio Republican Senator Bernie Moreno introduced legislation last week aimed at prohibiting dual citizenship for Americans, requiring them to hold exclusive allegiance to the United States. The bill, titled the Exclusive Citizenship Act of 2025, was submitted to the Senate on December 1 and would mandate that individuals with dual nationality renounce their other citizenship within one year or risk forfeiting their U.S. citizenship.

Moreno, who was born in Colombia and renounced his Colombian citizenship upon naturalizing as an American at age 18, described U.S. citizenship as "an honor and a privilege." In a statement, he added, "And if you want to be an American, it's all or nothing." The proposal stems from concerns over potential conflicts of interest and divided loyalties among dual citizens, though supporters and critics alike note that no widespread evidence links dual nationality to threats against national security.

Under current U.S. law, Americans are permitted to hold citizenship in another country, often acquired through birth, family ties, marriage, or professional circumstances. This includes a diverse group such as scholars, military personnel, diplomats,...