How cyclical are U.S. events and history? Gallup Research Adviser George Friedman joins the podcast to discuss his new book, "The Storm Before the Calm." Pointing to key moments in history, Friedman argues that the country cyclically finds itself in a state of crisis every 80 years -- and that these moments are drivers of major change as the U.S. "reinvents itself, in a form both faithful to its founding and radically different from what it had been."