The Financial Stability Oversight Council represented an innovative approach to the problem of systemic risk in the American economy. It also represented an innovative form of cooperative federalism. By grafting state regulators onto the Council as nonvoting members, Congress hoped this new federal super-regulator would draw upon a reservoir of state expertise and local knowledge so that the Council’s final decisions reflected a collaborative effort between the nation’s top experts at the federal and state level. But looking back over the first decade of the Council’s operations, it is clear that this experiment failed to work as Congress intended. Federal decisionmakers consciously minimized the role of their state counterparts and asserte...