What are the primary foreign policy and national security challenges facing the United States as President Donald J. Trump enters his third year in office in an era of divided government? On this annual edition of the program (recorded on-site at Georgetown University), Anthony (Tony) Arend, Professor of Government and Foreign Service, and Ambassador Mark Lagon, Chief Policy Officer at the Friends of the Global Fight against AIDS, Tuberculosis and Malaria, discuss how the increasingly unpredictable, nationalistic and isolationist tendencies of the Trump administration are affecting the conduct of US foreign policy and America’s image in the world.