Conservative icon William F. Buckley died fifteen years ago as the George W. Bush presidency was in its last year. The movement to which Buckley had dedicated his prodigious energies and remarkable mind faced an ordeal as Bush's "compassionate conservatism" foundered on massive failures: the war, the response to Hurricane Katrina, the subprime mortgage crisis. Today, conservatives and populists are somewhat split over another major foreign policy question: should the U.S. continue to support Ukraine? Buckley's movement is also being pulled further to the right by populists, media personalities, and cranks. What would Buckley do? In this episode, National Review senior writer Daniel McLaughlin discusses the past and future of conservatism.