Money plays a key role in the federal government’s relationship with the states. Congress gives money to the states, for example, but stipulates how this money should be used in order to force the states to cooperate with federal policies.
Since World War II, states have come to rely heavily on federal money. Likewise, the national government has also relied on the states to administer some federal policies, a practice called fiscal federalism. The term grants-in-aid refers to the federal government giving money to the states for a particular purpose. There are two general types of grants-in-aid:
Example: When the Republicans retook Congress in 1994, they changed many federal grants into block grants. Instead of giving money to states to buy textbooks or repair schools, for example, Congress gave states blocks of money to spend on education in any way the states saw fit.
The federal government uses a number of tactics to compel states to follow its policies and guidelines. Congress can order states to comply but usually applies pressure more subtly by threatening to withhold funds from disobedient states.