The flourishing of nativist political sentiments during the recent United States presidential election has resulted in popular speculation about who is, and who is not, a ‘real’ American. Foreign-born citizens’ struggles to forge a sense of civic belonging amid fears of national disloyalty have significant precedent. This article examines one such historical episode, which centres on a claims commission established between the United States and Turkey during the interwar period. The American-Turkish Claims Commission was intended to aid the resumption of diplomatic relations between the two nations through the resolution of private claims. For the hundreds of Armenian-Americans who filed claims, the Commission provided an unparalleled opportunity to seek their new government’s assistance in claiming compensation from the Republic of Turkey for losses incurred during the Armenian genocide. However, such faith was unwarranted, as the United States excluded from consideration all of the claims made by American citizens who were former Ottoman subjects. This article examines the reasons behind the exclusion of these claims and raises questions as to how immigrant communities can overcome the narrowing of what it means to be American both on the world stage and at home.