This is a guest post from Ronald R. Krebs, who is the Beverly and Richard Fink Professor in the Liberal Arts and Professor of Political Science at the University of Minnesota. His most recent book is Narrative and the Making of US National Security. At times, in recent years, it has seemed that Republicans and Democrats occupied different narrative universes with respect to national security. Republicans generally continued to live in the world of the War on Terror. Democrats gave voice to a more balanced understanding of the threats and opportunities facing the United States. Even when...