I. The Tenth Amendment and Enumerated Powers The Tenth Amendment states: "The powers not delegated to the United States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people." By its terms the amendment tells us nothing about which powers are delegated to the federal government, which are prohibited to the states, or which are reserved to the states or to the people. To determine that, we have to look to the centerpiece of the Constitution, the doctrine of enumerated powers. That doctrine is discussed at length in the Federalist...