How to Save a Constitutional DemocracyDemocracies are in danger. Around the world, a rising wave of populist leaders threatens to erode the core structures of democratic self rule. In the United States, the tenure of Donald Trump has seemed a decisive turning point for many. What kind of president intimidates jurors, calls the news media the "enemy of the American people," and seeks foreign assistance investigating domestic political rivals? Whatever one thinks of President Trump, many