Where Democrats move next will be dictated by their assessment of how they got here. Clinton’s run was premised on the assumption that she would inherit the Obama coalition—millennials of all races, racial minorities of all ages, and enough older whites to retain an overall majority. In a country growing more diverse each year, this was the electorate of the future. Democrats would solidify their hold on the White House by deploying the most sophisticated statistical analysis to turn out their base, converting electioneering from an art into a science. Demographics and data were destiny—until voters put forward a model of their own. Democrats had mistaken campaigns based on Obama’s distinctive appeal for a new stage in political history. Now they have learned what happens when they run on Obama’s platform without Obama.