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McCulloch v. Maryland (1819): AP Gov Study Guide

The first page of the United States Constitution
The first page of the United States Constitution. National Archives · Public domain. Illustrative image.

AP Gov toolkit / Federalism and implied powers

Start with the story. Then try explaining the rule without looking. This guide includes six practice questions and a writing check, so you can see what you understand and what needs another look.

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Sources reviewed October 29, 2026 · Independent, AI-assisted student resource · Not an official College Board guide

Case notes and practice

Choose your answers, then select “Check my answers.” Blank questions count as not yet correct. The test runs only in this page; answers and scores are not sent or saved. Reset clears your choices. The writing checklist is here to help you practice. It is not an official AP scoring guide.

02 McCulloch v. Maryland (1819)Federalism and implied powers · 6 questions + written practice

The case in plain English

What happened: Congress created a national bank. Maryland tried to tax it, and bank official James McCulloch refused to pay.

The question: Could Congress create the bank, and could Maryland tax it?

The conclusion: Congress could charter the bank, and Maryland could not use its tax to interfere with that constitutional federal instrument.

Why: The Necessary and Proper Clause permits appropriate means of carrying out enumerated powers. The Supremacy Clause protects valid federal action against conflicting state action.

Watch the limit: Implied powers still need a constitutional foundation. Federal power is broad in its sphere, not unlimited.

Read the court opinion and syllabus on Justia · Oyez case guide and available audio

Practice test: McCulloch v. Maryland

Not checked yet. Make your choices, then check your reasoning.

1. What created the federal-state conflict?

Facts

Check the answer and reasoning

B. Maryland taxed the national bank

The dispute linked Congress’s authority to create the bank with a state’s effort to tax it.

2. Which answer captures both parts of the result?

Holding

Check the answer and reasoning

C. The bank was constitutional; Maryland’s interfering tax was not

Remember both questions: authority to create the bank and the state’s ability to interfere with it.

3. Which clause supports Congress choosing appropriate means to carry out its listed powers?

Reasoning

Check the answer and reasoning

D. Necessary and Proper Clause

Necessary and Proper supports implied means connected to enumerated powers. Supremacy addresses the conflict with Maryland’s tax.

4. Congress creates an institution to carry out a listed power. What is the best first question under McCulloch?

Apply it

Check the answer and reasoning

A. Is the institution an appropriate constitutional means?

The Constitution need not list every tool Congress uses. The tool still needs a legitimate connection to constitutional authority.

5. Which claim is too broad?

Limits

Check the answer and reasoning

B. Any federal policy is valid because it is federal

Supremacy protects constitutional federal action. Calling something federal does not answer whether it is constitutional.

6. What makes Lopez a useful comparison?

Compare

Check the answer and reasoning

C. It shows a limit on a claimed congressional power

McCulloch supports an implied federal tool; Lopez rejects the Commerce Clause justification for the law at issue.

Written practice: explain more than the name

This is original practice, not a released AP question. Answer all three parts in a few clear sentences.

  1. Explain the bank and tax dispute.
  2. Identify the role of Necessary and Proper and the role of Supremacy.
  3. Use Lopez to show why federal power still has limits.
Open the written-response self-check

Give yourself one point for each idea you explained correctly. Use the checklist to see what needs another look. It does not predict your exam score.

  1. State that Congress could create the bank and Maryland could not impose the interfering tax.
  2. Keep implied power and supremacy as two related but different ideas.
  3. Explain that Congress still needs valid constitutional authority for a particular law.

A strong answer links a fact to the Constitution. If you only named an amendment, add a “because” to explain why it fits.

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Keep the cases connected

Compare the required cases · Review legal reasoning · Report a confusing question or correction

Original, unofficial practice prepared with AI assistance. AP is a trademark of College Board, which does not endorse this project. These questions do not predict an exam score. Educational information, not legal advice. Check the current College Board framework with your teacher.