Abstract
The United States has responded ineffectively to the COVID-19 pandemic, raising questions about the capacity of contemporary American federalism to deal with crises. This article examines the scope of power granted to the federal government by the U.S. Constitution and the legislative power available to states under state constitutions, concluding that these powers are adequate to deal with the pandemic and other emergencies. It then considers whether having multiple governments confronting the crisis has precluded a coordinated response. Although scholars have highlighted cooperative federalism in the United States, cooperation is not automatic, and in recent years American political parties have become more ideologically cohesive and more polarized. Federalism has multiplied the opportunities for these parties to advance their objectives or to frustrate those of their adversaries in the overlapping domains in which both states and the federal government operate. The result has been uncooperative federalism.