What is the most fundamental challenge facing democracies today? One major concern is democratic backsliding, regression, or the rise of “illiberal democracies.” Another concern, closely related, is the rise of “populism,” at least in certain forms, such as those that are fundamentally anti-pluralist and view the “people” as a “moral, homogenous entity whose will cannot err,”1 or, in less virulent form, those that express impatience with institutional structures and norms – such as judicial review, independent institutions, or separation of powers – that stand in the way of direct, unmediated expression of the “popular will.” Good reasons exist for these concerns across many democracies today. But, in my view, the deepest and perhaps most enduring challenge to democratic governments across the West that has emerged in recent years is what I call “political fragmentation.”2 Put briefly, political fragmentation is the dispersion of political power into so many different hands and power centers that it becomes extremely difficult to marshal enough political power and authority for governments to function effectively.