The complexity of the American economy and polity has grown rapidly in recent decades, but as the 2008 financial crisis revealed, the evolution of the American state has not proceeded apace. Covering the early nineteenth century to the present, The Unsustainable American State offers an unsettling account of the dysfunctionalities that accelerated the erosion of American state capacity in the post-1970s era: persistent racial division, growing economic inequality, democratic decline, and imperial overreach.