## Learning Outcomes

- Define **reserved powers** and explain how they are rooted in the **Tenth Amendment**
- Distinguish reserved powers from **delegated/enumerated powers** and **concurrent powers**
- Identify common examples of powers reserved to the states, including elections, education, and licensing
- Explain how reserved powers support **federalism** and **state sovereignty**
- Use **United States v. Lopez (1995)** to show limits on Congress's Commerce Clause power
- Explain the **anti-commandeering doctrine** using **Printz v. United States (1997)** and **Murphy v. NCAA (2018)**
- Apply this topic to AP multiple-choice and free-response questions

## AP United States Government and Politics Syllabus

For the AP United States Government and Politics, you are expected to understand reserved state powers within American federalism, with a focus on the following syllabus points:

- Know the text and meaning of the **Tenth Amendment**, ratified in **1791**
- Define **reserved powers** as powers not delegated to the national government and not denied to the states
- Identify common examples of reserved powers, including conducting elections, establishing local governments, regulating **intrastate commerce**, issuing licenses, and overseeing public education
- Explain the difference between **reserved powers**, **delegated/enumerated powers**, and **concurrent powers**
- Understand how reserved powers reflect the broader principle of **federalism**
- Explain how **United States v. Lopez (1995)** limited Congress's Commerce Clause power and protected an area of state authority
- Understand that the federal government may not **commandeer** state governments to implement federal policy
- Use **Printz v. United States (1997)** and **Murphy v. NCAA (2018)** to explain modern limits on national power over the states

## Test Your Knowledge

_Attempt these questions before reading this article. If you find some difficult or cannot remember the answers, look more closely at that area during your revision._

1. What does the **Tenth Amendment** say about powers not delegated to the United States?
2. What is the difference between **reserved powers** and **concurrent powers**?
3. Name two examples of powers usually reserved to the states.
4. How did **United States v. Lopez (1995)** limit federal power?
5. What does the **anti-commandeering doctrine** prevent the federal government from doing?

## Introduction

Reserved state powers are one of the clearest examples of how the U.S. Constitution divides authority between different levels of government. On the AP exam, this topic matters because federalism is not just a definition to memorize. You need to explain how power is split, why that split exists, and how Supreme Court cases change the balance over time.

The basic idea is simple: the national government only has the powers the Constitution gives it, while the states keep a broad range of powers for governing everyday life. That is why many issues most people meet directly, such as schools, licenses, local policing, and election procedures, are often handled mainly by state governments.

> **Key Term: federalism**
> The division of power between the national government and state governments.

## Introduction to reserved powers and the Tenth Amendment

The constitutional foundation of reserved powers is the **Tenth Amendment**, ratified in **1791** as part of the Bill of Rights. Its text states: “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 matters because it tells you something basic about the American system: the national government is a government of **limited, enumerated powers**. Congress does not have a general power to do whatever seems useful. It must point to a constitutional source of authority. If no such source exists, the power usually stays with the states or the people.

> **Key Term: reserved powers**
> Powers not delegated to the national government and not denied to the states; under the Tenth Amendment, these powers are kept by the states or the people.
>
> **Key Term: Tenth Amendment**
> The constitutional amendment stating that powers not delegated to the United States, nor prohibited to the states, are reserved to the states or the people.

Students often miss an important point here. The Tenth Amendment does not list a neat catalogue of state powers. Instead, it works as a rule of interpretation. It tells you how to think about powers: start with what the Constitution gives the national government, then ask what remains.

That is why AP questions often test the contrast between national and state authority rather than asking for the amendment’s wording alone.

> **Test Tip:** If a question asks which constitutional provision best reflects federalism, the safest answer is usually the **Tenth Amendment**, not separation of powers or checks and balances.

### Reserved powers compared with delegated and concurrent powers

To understand reserved powers properly, you need to place them next to the other main categories of power.

**Delegated** or **enumerated powers** belong to the national government. These include powers such as declaring war, coining money, regulating interstate commerce, and making treaties.

**Reserved powers** belong mainly to the states. These cover many parts of daily government within state borders.

**Concurrent powers** are shared by both the national and state governments. Taxation is the classic example.

> **Key Term: delegated powers**
> Powers specifically granted to the national government by the Constitution.
>
> **Key Term: enumerated powers**
> Another term for delegated powers; powers expressly listed in the Constitution.
>
> **Key Term: concurrent powers**
> Powers shared by both the national and state governments.

A common AP mistake is confusing a power that is common at the state level with a power that is exclusively reserved. For example, both state and federal governments can operate court systems, so courts are not purely reserved. But **conducting elections**, **creating local governments**, and **regulating intrastate business** are standard examples of state-reserved authority.

Another common mistake is assuming that anything “local” must be reserved. That is too broad. Some local activity can still be reached by federal power if Congress is acting through a valid enumerated power, especially the Commerce Clause. So you must always ask two questions:

1. Is this power specifically granted to the national government?
2. If not, has the Constitution prohibited the states from exercising it?

If the answer to the first is no and the second is no, you are probably looking at a reserved power.

## Main examples of reserved state powers

The AP course expects you to know standard, safe examples. Use these rather than making sweeping claims.

### Elections, local government, education, and licensing

States have major authority over the machinery of elections. They set many rules about voter registration, polling places, ballot design, and the administration of elections, as long as those rules do not violate the Constitution or valid federal law. This is why election law often varies from state to state.

States also create and structure **local governments**. Counties, cities, towns, and school districts do not come from the federal Constitution. They exist because state governments establish them.

Public education is another classic area of state responsibility. States set standards, fund systems in different ways, and oversee school governance. The federal government can influence education through grants and legislation, but education itself is not a general delegated national power.

Licensing is another clear example. States issue driver's licenses, professional licenses, and many business licenses. This reflects their authority over internal public order and administration.

### Intrastate commerce and police powers

States also regulate **intrastate commerce**, meaning business conducted within one state. This is a useful contrast term for the AP exam because Congress regulates **interstate commerce**, while states regulate commerce staying inside their own borders.

> **Key Term: intrastate commerce**
> Commercial activity that takes place within a single state.

A major category of reserved authority is the state's **police power**. This does not mean police departments only. It means the broad power to regulate for health, safety, morals, and general welfare. Public health rules, safety codes, and many welfare policies come from this authority.

> **Key Term: police powers**
> The broad state authority to regulate for the health, safety, morals, and welfare of the public.

Students often overstate this. Police powers are very important, but they are not a synonym for every reserved power. They are one major part of state authority.

> **Test Tip:** If an AP question asks for a state-reserved example, strong answers include **running elections**, **issuing licenses**, **regulating intrastate commerce**, and **overseeing education**. These are safer than vague claims like “all crime” or “all family law.”

### Why reserved powers matter in practice

Reserved powers matter because they preserve a real sphere of state authority. Without them, federalism would be hollow. States would just be administrative arms of the national government.

This state sphere can produce different laws and policies across the country. One state may use different education rules, election procedures, or licensing standards than another. That variation is part of federalism. Supporters say it lets states respond to local needs and act as policy experiments. Critics say it can create inconsistency and unequal rights in practice. For AP evaluation, both sides matter, but the constitutional point remains: states retain broad governing power unless the Constitution gives the national government authority instead.

## Reserved powers, federal limits, and Supreme Court cases

Reserved powers are not just theory. The Supreme Court has defined their practical limits and protections.

### United States v. Lopez and limits on the Commerce Clause

In **United States v. Lopez (1995)**, the Court struck down the Gun-Free School Zones Act. Congress had made possessing a gun near a school a federal crime. The question was whether Congress could justify that law under the **Commerce Clause**.

The Court said no. Possessing a gun near a school was not economic activity and was too weakly connected to interstate commerce. That meant Congress had gone beyond its enumerated powers.

> **Key Term: Commerce Clause**
> The constitutional clause giving Congress the power to regulate commerce with foreign nations, among the states, and with Native American tribes.

Lopez is important because it did not directly say, “This is a reserved state power under the Tenth Amendment.” Instead, it worked by limiting national power at the front end. If Congress lacks constitutional authority to regulate an issue, that issue remains largely in the state sphere.

This is a distinction students often miss. **Lopez is mainly a Commerce Clause case, not an anti-commandeering case.** Its significance for reserved powers is that it leaves more room for states by restricting federal reach.

Ordinary local safety and criminal issues often fall within state police powers unless Congress can point to a valid enumerated power.

### Anti-commandeering: Printz and Murphy

Modern doctrine gives states another protection: the **anti-commandeering doctrine**. This says the federal government may regulate individuals directly, but it may not force states or state officials to carry out federal regulatory programs.

> **Key Term: anti-commandeering doctrine**
> The principle that the federal government cannot require states or state officials to enact, administer, or enforce federal policy.

In **Printz v. United States (1997)**, the Court ruled that Congress could not require state and local law enforcement officers to conduct background check tasks under the Brady Act. The issue was not whether gun regulation itself was constitutional. The issue was whether the federal government could make state officials administer the federal system. The Court said no.

In **Murphy v. NCAA (2018)**, the Court extended the same principle. Congress had tried to stop states from authorizing sports gambling. The Court ruled that Congress cannot directly tell state legislatures what they may or may not enact. That would also be commandeering.

These cases are high value for AP because they show that federalism is not only about what Congress can regulate. It is also about how Congress must pursue national goals. It may regulate people directly through valid federal law, but it generally may not force states to do its work.

### Reserved powers are protected, but not unlimited

Reserved powers do not let states ignore valid federal law. This is where the **Supremacy Clause** matters. If Congress is acting within an enumerated power and the law is constitutional, federal law prevails over conflicting state law.

So the Tenth Amendment is not a magic phrase that automatically defeats any federal action. The real question is usually whether the national government is acting within its constitutional authority.

That is why **McCulloch v. Maryland (1819)** remains important background. The Court ruled that Maryland could not tax the national bank because valid federal action is supreme over conflicting state action. Even though McCulloch expanded federal power, it helps clarify the limits of state sovereignty: states have reserved powers, but those powers stop where valid federal authority begins.

### How to structure an evaluative answer

If a free-response or argument question asks whether reserved powers still matter, avoid a one-sided response.

A strong structure is:

- On one hand, reserved powers preserve state authority over areas like elections, education, licensing, and intrastate commerce.
- On the other hand, federal power through the Commerce Clause, necessary and proper clause, and Supremacy Clause can still reach many issues.
- It depends on whether Congress is acting within an enumerated power and whether it is regulating directly or trying to commandeer the states.

Good evidence to cite includes the **Tenth Amendment**, **United States v. Lopez**, **Printz v. United States**, and **Murphy v. NCAA**. For a deeper contrast, you can also mention **McCulloch v. Maryland** as a case showing federal supremacy when national power is valid.

## Key Point Checklist

_This article has covered the following key knowledge points:_

- The **Tenth Amendment** was ratified in **1791**
- Reserved powers are powers not delegated to the national government and not denied to the states
- Reserved powers are a core feature of **federalism**
- The national government is a government of **delegated/enumerated powers**
- States commonly administer elections, create local governments, issue licenses, oversee education, and regulate **intrastate commerce**
- **Police powers** are a major part of state authority over health, safety, morals, and welfare
- **Concurrent powers** are shared by state and national governments
- **United States v. Lopez (1995)** limited Congress's Commerce Clause authority and left more room for state power
- **Printz v. United States (1997)** held that Congress cannot require state executive officials to administer federal programs
- **Murphy v. NCAA (2018)** held that Congress cannot directly command state legislatures
- Reserved powers are protected, but states still cannot ignore valid federal law under the **Supremacy Clause**
- On the AP exam, strong examples of reserved powers are elections, licensing, local government, education, and intrastate commerce

## Key Terms and Concepts

- federalism
- reserved powers
- Tenth Amendment
- delegated powers
- enumerated powers
- concurrent powers
- intrastate commerce
- police powers
- Commerce Clause
- anti-commandeering doctrine


Relationship Between the States and National Government - Reserved state powers