The Evolution of American Federalism

Federalism in the United States has gone through several phases of evolution during which the relationship between the federal and state governments has varied. In the era of dual federalism, both levels of government stayed within their own jurisdictional spheres. During the era of cooperative federalism, the federal government became active in policy areas previously handled by the states. The 1970s ushered in an era of new federalism and attempts to decentralize policy management.