Israel and United States have been closely allied since Israel's founding. President Harry S Truman officially recognized Israel almost immediately after it declared independence, and popular support for this new state grew among Americans Jews and Christians alike. Support for Israel has remained high even as the strategic value of the alliance has apparently diminished. Indeed, in supporting Israel the United States has at times pursued a sub-optimal foreign policy. This presents an interesting political puzzle: in a country where public policy is made by majoritarian institutions (Congress and the president) designed to represent local interests and opinion, how has the cause of this small country maintained consistently high levels of support from policymakers and the public alike? That is the question we, together with our colleagues Kenneth Wald and Beth Rosenson, investigate in this research project.