Answer:
Federalism
Step-by-step explanation:
Federalism may be defined as the mixed form of the government or compound form which combines the general government with the regional government in single political system.
It is the system of government where the power is being divided between national government and the other states' government. It is opposite to the unitary form of government.
Thus federalism describes the preservation of some powers of the states but relegation of other power to the national government.