Bill Frey, a senior fellow in the Metropolitan Policy Program at Brookings and one of the nation’s leading experts on U.S. population demographics, talks about his new analysis of Census Bureau data on America’s population dynamics and their meaning for immigration, the Electoral College in future presidential elections, and the nation’s future generally. Also on today’s show, Senior Fellow Molly Reynolds discusses what's happening in Congress, including impeachment, the trade deal, and U.S. conflict with Iran.  Subscribe to Brookings podcasts  or on , send feedback email to , and follow us and tweet us at  on Twitter. The Brookings Cafeteria is part of the .