Supremacy Clause
The Supremacy Clause is the tie-breaker of the whole federal system.
8. Supremacy Clause
The Supremacy Clause of Article VI establishes that the Constitution, U.S. laws, and treaties made under the authority of the United States are the nation’s supreme law and are binding on state judges and legislators notwithstanding any state constitution or law.
- The Supremacy Clause makes the Constitution, U.S. laws, and treaties, “the supreme Law of the Land.”
- The Supremacy Clause means that state judges and legislators cannot ignore lawfully enacted federal Constitutional provisions, U.S. laws, or treaties.
- Most government power is concurrent, belonging to both the states and the federal government.
- This concurrent power makes it possible for states and the federal government to lawfully pass legislation on the same subject matter, and that when this happens, the Supremacy Clause means that conflict between the state and federal law is resolved in favor of the federal law.
- The most important mechanism for enforcing the Supremacy Clause is the preemption doctrine.
The Supremacy Clause makes the Constitution, U.S. laws, and treaties the supreme law of the land, so when valid federal and state law conflict, federal law wins and the state must yield. Its enforcement engine is preemption.
The Supremacy Clause is the tie-breaker of the whole federal system. It says that the Constitution, the laws of the United States, and treaties made under the authority of the United States are the supreme law of the land, binding on state judges and legislators notwithstanding any state constitution or law. So when federal law and state law collide, federal law wins, and a state judge or legislator cannot ignore a lawfully enacted federal provision, statute, or treaty just because state law says otherwise.
Start with a feature that surprises people: most government power is concurrent. It belongs to both the states and the federal government at the same time. That is the normal situation, not the exception. Because power is concurrent, both can pass legislation on the same subject, and that is perfectly lawful right up until the two laws conflict. When they do conflict, the Supremacy Clause resolves the conflict in favor of the federal law.
The most important mechanism for enforcing the Supremacy Clause is preemption. Preemption is the doctrine that decides when federal law displaces state law. The key practical point for this exam is that the supremacy principle is triggered by a conflict and is resolved in favor of valid federal law; it does not mean the federal government can do anything, and it does not erase the states from a field. It means that where lawfully enacted federal law and state law point in different directions, the state must yield.
Federal wins the tie. The Constitution, U.S. laws, and treaties made under U.S. authority are the supreme law of the land; state judges and legislators cannot ignore lawfully enacted federal law. Two facts the exam leans on: most power is concurrent (both can legislate on the same subject lawfully), and the clause only does work when there is a conflict, which it then resolves for the federal law. The enforcement engine is preemption. The killer move: supremacy is triggered by conflict between valid federal and state law, not by the mere existence of a federal interest. If an answer lets the state win a genuine conflict with valid federal law, eliminate it; if an answer says states can never legislate where the federal government has, be suspicious, because concurrent power is the norm and only conflict triggers the clause.
Suppose both a state and the national government have lawfully passed legislation regulating the same subject. For a while the two operate side by side without trouble, because power over the subject is concurrent. Then the state amends its statute so that complying with the state law would require violating the federal law. A party caught between the two asks which controls.
If the state amendment had not created any conflict, both laws would simply continue to coexist, because concurrent legislation on the same subject is lawful until it actually conflicts.
An option that resolves a genuine conflict between valid federal and state law in favor of the state, or makes the state law control because it came first or is more protective.
The Supremacy Clause resolves a conflict in favor of the federal law; state judges and legislators cannot ignore lawfully enacted federal law, and seniority does not matter.An absolute option: states may never legislate where the federal government has acted, or any federal interest automatically displaces all state law.
Most power is concurrent, so states and the federal government may lawfully legislate on the same subject; the clause operates only on conflict, enforced through preemption.An option that saves a conflicting state law because it serves a strong local interest, was carefully drafted, or governs wholly local activity.
A worthy state interest does not survive a genuine conflict with lawfully enacted federal law; the conflict is resolved for the federal law.A 'federal law controls' option that rests on a vague assertion of federal superiority rather than on the conflict being resolved in favor of valid federal law.
Name the operative basis: a conflict between lawfully enacted federal law and state law, resolved in favor of the federal law and enforced by preemption.the stem has a state law and a federal law (statute, constitutional provision, or treaty) operating on the same subject, and asks which controls or whether the state law can stand.
ask whether the power is concurrent and the two simply coexist, in which case both are lawful and nothing is displaced.
Then ask whether there is an actual conflict.
If lawfully enacted federal law and state law genuinely conflict, the Supremacy Clause resolves it in favor of the federal law, and preemption is the mechanism that does the work.
Watch for an answer that lets the state win a real conflict with valid federal law, or one that says states can never act where the federal government has acted; the first ignores supremacy, the second ignores concurrent power.
Both a state and the national government had lawfully enacted statutes regulating the labeling of a consumer product. The national government later amended its statute so that a label complying with the state statute would violate the federal statute, and a label complying with the federal statute would violate the state statute. A manufacturer caught between the two asked which statute it had to follow.
Which statute most likely controls under existing precedent?
A state legislature enacted a statute on a subject that the national government also regulated by statute. The two statutes addressed the same subject but did not contradict each other, and a person could comply with both at the same time. A litigant argued that the state statute was automatically invalid simply because the national government had legislated on the same subject.
Is the litigant's argument that the state statute is automatically invalid most likely to succeed under existing precedent?
A treaty made under the authority of the United States addressed a matter, and a state later enacted a statute that directly conflicted with the treaty's requirements. A state judge hearing a dispute governed by the matter concluded that, because the conflicting rule came from a treaty rather than from an ordinary federal statute, the judge was free to apply the state statute instead.
Is the state judge correct that the conflicting state statute may be applied instead of the treaty under existing precedent?
In a dispute over which level of government's law applied, a lawyer was asked to identify the principal mechanism the legal system uses to enforce the Supremacy Clause when federal and state law occupy the same subject. A colleague offered several candidates for that mechanism.
Which mechanism is the most important one for enforcing the Supremacy Clause under existing precedent?
A state statute and a lawfully enacted federal statute regulated the same activity, and on one specific requirement the two flatly contradicted each other, so that obeying the state requirement necessarily meant violating the federal requirement. A state official argued that the state could enforce its own requirement because the activity took place entirely within the state's borders.
Is the state official's position that the state requirement may be enforced most likely to succeed under existing precedent?