I think is federalism
That is true. It is called dual.Dual federalism
federalism
federalism
Federalism plays a major role in the government.
Federalism
Dual Federalism: a system of government in which both the states and the national government remain supreme within their own spheres, each responsible for some policies. This is commonly known as "layer cake" federalism.
The concept of federalism as expressed in the structure of the US government is best described as a concept of the separation of powers. The Constitution mandated three branches of government in order to avoid power being concentrated on any one entity.
Federalism is a form of government where the National government, and the States government is shared, and equalized so none gain power over one another.
federalism
Cooperative federalism or new federalism is the sort of federalism that saw the federal government give power back to the states.
Dual Federalism or Layered-cake federalism