In the quarter century after the Second World War, New Deal liberalism was riding high. But after LBJ's Great Society was sacrificed on the altar of Vietnam, and after Carter's failed presidency gave way to the Reagan Revolution, Democrats were in disarray and liberal became a dirty word. A generation later, is Joe Biden leading a liberal comeback? Princeton historian Sean Wilentz returns to the podcast to talk about the possibilities and perils facing the Democratic Party after four years of Trump.