2 Federalism

The federal system

Federalism divides governing authority between the national government and state governments. In the United States, both levels govern the same people and territory, and their responsibilities sometimes overlap.

This arrangement gives the national government authority to address problems affecting the country as a whole while preserving states as important centers of decision-making. It can allow policies to reflect local needs, but it can also produce disputes about which level has authority.

Federalism differs from a unitary system, where the national government holds ultimate governing authority, and a confederation, where the central government depends heavily on member states.

Constitutional powers of the two levels

The Constitution assigns the federal government delegated powers. Article I, Section 8 authorizes Congress to tax, spend for the general welfare, regulate interstate commerce, establish uniform rules for naturalization and bankruptcy, and raise armed forces. The Necessary and Proper Clause allows Congress to enact laws that are useful means of carrying out its constitutional powers. Federal action must still connect to a constitutional power; the federal government does not have unlimited authority.

The Tenth Amendment provides that powers not delegated to the United States, and not prohibited to the states, are reserved to the states or the people. States retain broad authority, commonly called the police power, to protect public health, safety, and welfare. This authority covers many areas of everyday governance, including public education, local government, and much criminal and family law.

The Constitution also expressly prohibits certain state actions. For example, states may not make treaties with foreign governments or coin money.

Shared and distinct powers

Some powers are concurrent powers, meaning both the federal and state governments may exercise them, subject to constitutional limits. Both can tax, borrow money, and create courts. Other powers are chiefly national, such as conducting foreign relations and coining money.

Local governments participate in public policy, but their governing authority generally comes from their state rather than directly from the federal Constitution.

Federal supremacy and its limits

The Supremacy Clause makes the Constitution, valid federal laws, and treaties the supreme law of the land. When a valid federal law conflicts with state law, the federal law prevails; this is called preemption.

Federal supremacy applies only when the federal government acts within its constitutional authority. The Supremacy Clause does not give Congress general power to legislate on any subject.

Limits on directing state governments

The anti-commandeering principle generally prevents Congress from ordering state legislatures to enact a federal regulatory program or requiring state executive officials to administer one.

Instead, the federal government can regulate individuals and organizations directly under a valid federal law, or invite states to participate in a federal program. States may choose different approaches or decline to administer a federal program, though federal law can still apply directly when Congress has constitutional authority.

Cooperation and federal funding

National and state governments often cooperate to address policy problems, a pattern called cooperative federalism. Their responsibilities, roles, and resources may differ even when they share a policy objective.

A federal grant-in-aid provides federal money to state or local governments for public programs. A categorical grant is generally tied to a specific purpose, while a block grant gives states more flexibility within a broader policy area. Congress may attach conditions to some federal funds, so states must weigh the funding against its requirements. Conditions are subject to constitutional limits, including rules concerning clear notice and coercion.

Federal laws may establish standards that states help put into practice, while federal agencies provide funding, guidance, or oversight. These arrangements can expand cooperation and draw on state experience, but they can also complicate accountability: citizens may find it difficult to tell which level of government is responsible for a policy’s design, funding, or results.

Federalism in practice

For a nationwide environmental problem, Congress may set federal rules if it has constitutional authority. States may enforce those rules, adopt additional policies where permitted, or administer programs supported by federal grants. If a state rule conflicts with a valid federal requirement, the Supremacy Clause may make the federal rule controlling.

If Congress wants state assistance, it may offer funding with lawful conditions, but it generally cannot simply command state officials to carry out a federal program. The example illustrates how federal rules, state implementation, grants, and limits on federal authority can operate together.

A changing constitutional balance

Federalism is a constitutional framework for dividing authority, resolving conflicts, and coordinating action, rather than a fixed list of separate policy areas. Its balance has changed over time through constitutional interpretation, legislation, court decisions, and political practice.