What does the Tenth Amendment protect the power of _________________ and _________________?

What the Tenth Amendment actually says

Text of the Amendment

The Tenth Amendment reads, in full, “The powers not delegated to the United States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people.” This exact wording is the starting point for any discussion about the Amendment and its practical reach; readers can confirm the text in the National Archives transcription.

Put simply, the Amendment states that when the Constitution does not give a power to the federal government, and it does not forbid the States from exercising it, that power belongs to the States or to the people. This plain reading sets the constitutional foundation for federalism analysis and signals that the Amendment does not itself list specific reserved powers or give a catalogue of authorities.

Why the wording matters

The precise phrasing matters because the Amendment operates as a structural rule about the distribution of authority rather than as a bill of specific rights. Legal commentators often point to the text when explaining that courts and legislators must interpret which powers are “delegated” and which are not, rather than assuming an open list of reserved powers.

How the Supreme Court has framed the Amendment in major cases

New York v. United States

In New York v. United States, the Court addressed the limits of federal power when Congress attempted to compel State legislative action, holding that while Congress may offer incentives, it cannot directly force States to enact or administer federal programs. That decision is a key milestone in describing the Tenth Amendment as protecting state sovereignty in the face of federal direction, and readers can review the case summary for the Court’s reasoning.

Printz v. United States

Printz extended the logic by holding that the federal government may not require state officials to conduct background checks required by a federal law, which the Court treated as an unconstitutional command of state officers. This ruling is central to the anti-commandeering concept that separates federal authority over individuals from impermissible federal direction of state executives.

Murphy v. NCAA and reaffirmation

Most recently, Murphy v. National Collegiate Athletic Association reaffirmed the anti-commandeering principle, making clear that the federal government cannot commandeer state legislative processes by conditioning state law on federal regulatory aims. The Court treated the question as a structural limit on how Congress may use its powers against States. The Court opinion and case materials are available on the Supreme Court website and in neutral summaries.

The anti-commandeering principle explained

What anti-commandeering forbids

Anti-commandeering forbids federal laws that directly instruct state legislatures or state officers to enforce federal regulatory programs. In plain language, the federal government can regulate individuals within a State under its enumerated powers, but it cannot turn state officials into agents of federal enforcement in a way the Constitution does not authorize.

Limits on federal authority versus limits on federal law

That distinction means federal statutes aimed at individuals are judged differently from statutes that require State governments to implement federal aims. Courts have treated many federal measures as valid exercises of congressional power when they regulate private conduct, while treating direct compulsion of state governmental processes as outside Congress’s authority.

How the Amendment matters in state versus federal disputes

When a policy dispute arises between a State and the federal government, the Tenth Amendment often appears in arguments about whether federal action improperly intrudes on state sovereignty. Common settings include conflicts over state-administered programs, regulatory schemes, and areas of contentious state law, and legal guides summarize these patterns for readers seeking background.

Courts looking at such disputes typically ask whether the federal law seeks to regulate private behavior directly or whether it instead commands state governments to act in a particular way. If a federal measure effectively orders state officials to administer federal policy, courts may apply anti-commandeering principles to limit that federal reach.

Recent legislative attention and what it signals

2025 10th Amendment Restoration Act summary

In 2025 Congress saw the introduction of the 10th Amendment Restoration Act, a bill reflecting renewed interest in articulating limits on federal authority and in reaffirming state sovereignty claims. Legislative activity of this kind signals debate in Washington about federalism questions, even though bills themselves do not change Supreme Court precedent.

What legislative proposals can and cannot do legally

It is important to note that while Congress can propose and pass laws that articulate policy preferences about state and federal roles, only the courts can resolve constitutional disputes about the Tenth Amendment’s reach in particular cases. Legislative proposals help frame public debate but do not by themselves alter binding judicial interpretations.

Common factual settings and typical judicial outcomes

State marijuana laws provide a recurring example where Tenth Amendment principles and federalism doctrines intersect. Conflicts often arise when federal enforcement priorities and state legalization choices diverge, creating legal questions that courts resolve by reference to whether federal action improperly commands state actors or instead targets private conduct.

Another common setting concerns federal programs that rely on state administration; courts examine whether a federal statute is merely setting conditions on federal funding or is effectively forcing states to carry out federal regulatory schemes. Outcomes vary with statutory design and factual context, and neutral legal summaries can help readers track how courts draw those lines.

Common factual settings and typical judicial outcomes continued

Judicial outcomes in these areas are fact specific. Where Federal law regulates individuals directly, courts are more likely to find the law within Congress’s enumerated powers. Where Congress attempts to conscript state officials into enforcing federal policy, courts have frequently invoked anti-commandeering limits to block that effort.

Scholarly debate and limits on the Amendment’s reach

Debate over individual rights versus state powers

Scholars disagree about whether the Tenth Amendment protects an independent set of individual rights or primarily functions as a structural protection for state authority. Some legal commentators read the Amendment as reserving a sphere of authority to the people, while others emphasize its role in maintaining the balance between state and federal institutions.

Scholarly views on scope

Because the Amendment does not enumerate specific individual rights, most scholarship treats it as a rule about governmental structure. Readers who want to explore differing academic perspectives will find legal commentaries that discuss both the Amendment’s structural role and arguments for a broader individual-protection reading.

Practical examples readers can verify quickly

To verify primary texts, start with the National Archives for the Amendment text and consult neutral case summaries on Oyez or Justia for major decisions discussed here. Those sources provide the exact language of opinions and helpful summaries for readers checking claims or citations.

One short example is a state marijuana legalization law that conflicts in practice with federal enforcement priorities. Courts have used federalism doctrines and anti-commandeering analysis to address whether federal approaches impermissibly depend on state cooperation, with outcomes that turn on statutory detail and the mode of federal action.

A second quick example is a State’s refusal to implement certain federal administrative procedures that would require state officers to perform federal tasks; in those scenarios, Printz and later cases provide precedent for limiting compelled state action.

How to read and cite Tenth Amendment authorities for reports or research

Best primary sources to cite

For exact wording of the Amendment, cite the National Archives transcription. For case law, cite authoritative case pages or the official opinions, and for federal legislation consult Congress.gov for bill texts and legislative history.

How to present holdings and limits

When summarizing judicial holdings, use neutral attributions such as the Court held or the opinion states and avoid overstating results beyond the opinion’s scope. Cite the specific opinion or bill text you used so readers can check the underlying source for context and nuance.

One short example is a state marijuana legalization law that conflicts in practice with federal enforcement priorities. Courts have used federalism doctrines and anti-commandeering analysis to address whether federal approaches impermissibly depend on state cooperation, with outcomes that turn on statutory detail and the mode of federal action.

A second quick example is a State’s refusal to implement certain federal administrative procedures that would require state officers to perform federal tasks; in those scenarios, Printz and later cases provide precedent for limiting compelled state action.

Key takeaways and next steps for readers

Concise answer: the Tenth Amendment protects the powers of the States and of the people by reserving to them powers not delegated to the federal government, a basic point of constitutional structure that underlies modern federalism analysis.

Modern application of that protection is shaped by Supreme Court decisions that limit federal commandeering of state governments; readers should consult New York v. United States, Printz v. United States, and Murphy v. NCAA for authoritative guidance and reasoning.