McCulloch v. Maryland (1819) — Mr. Rogers AP Gov

Unit 1

McCulloch v. Maryland

17 U.S. 316 · March 6, 1819 · Chief Justice John Marshall

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BACKGROUND

In 1816, Congress chartered the Second Bank of the United States — a national bank to stabilize currency and manage federal finances. Many states, especially Maryland, resented the bank's power and saw it as federal overreach. Maryland passed a law taxing out-of-state banks operating in Maryland, which in practice targeted the national bank. James McCulloch, the bank's Maryland cashier, refused to pay the tax.

The case raised two distinct constitutional questions that Marshall answered separately, both in favor of federal power. The first was about congressional power — can Congress create a bank when the Constitution doesn't mention one? The second was about federalism — can Maryland tax a federal institution? Marshall's answers established the two pillars of federal supremacy that still govern American federalism.

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TWO CONSTITUTIONAL QUESTIONS

Question 1 — Congressional Power

Does Congress have authority to charter a national bank even though the Constitution doesn't explicitly mention one?

Answer: YES — the Necessary and Proper Clause grants implied powers beyond those enumerated.

Question 2 — State Power

Can the state of Maryland tax a branch of the federally chartered national bank operating within its borders?

Answer: NO — the Supremacy Clause makes federal law supreme; states cannot tax federal institutions.

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THE RULING

✓ Federal government wins on both questions — Unanimous

Unanimous · Chief Justice John Marshall · March 6, 1819

"Let the end be legitimate, let it be within the scope of the constitution, and all means which are appropriate, which are plainly adapted to that end, which are not prohibited, but consist with the letter and spirit of the constitution, are constitutional."

On Question 1: The bank is constitutional. The power to create a bank isn't listed in Article I, but chartering a bank is a reasonable means of carrying out enumerated powers like taxing, borrowing, and regulating commerce. The Necessary and Proper Clause doesn't mean "absolutely necessary" — it means reasonably appropriate. On Question 2: Maryland's tax is unconstitutional. The power to tax is the power to destroy. If states could tax federal institutions, they could effectively nullify federal law. The Supremacy Clause prevents this — federal law is supreme within its sphere.

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TWO PRINCIPLES ESTABLISHED

1 — Broad Implied Powers

If the end (goal) is legitimate and within the Constitution, any means that are appropriate and not prohibited are constitutional. Congress doesn't need express authority for every action — just a reasonable connection to an enumerated power. This is the foundation of modern federal regulatory power.

2 — Federal Supremacy Over States

States cannot tax, interfere with, or obstruct valid federal operations. "The power to tax involves the power to destroy" — allowing states to tax federal institutions would give them the power to nullify federal law. The Supremacy Clause prevents this.

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LEGACY & CONNECTIONS

Brutus No. 1
Connection Brutus had warned that the N&P Clause would give Congress virtually unlimited power. McCulloch proved him right — Marshall interpreted it broadly, just as Brutus feared. This is a direct link between the Anti-Federalist critique and constitutional reality.
U.S. v. Lopez
Contrast Lopez (1995) is the counterpoint — the Court finally set a limit on what counts as "necessary and proper" under the Commerce Clause. Together, McCulloch and Lopez define the boundaries of congressional power: broad but not unlimited.
Modern Federal
Regulation The New Deal expansion of federal power, civil rights legislation, environmental regulation, healthcare law — all rest on the McCulloch framework. If "necessary and proper" means broadly connected to an enumerated power, Congress has vast regulatory authority.
Nullification
Defeated McCulloch rejected the idea that states could nullify federal law — a doctrine that Southern states later used to resist civil rights legislation. The Supremacy Clause means federal law wins. States can challenge federal laws in court; they cannot simply refuse to comply.

What to remember

McCulloch almost always appears in SCOTUS Comparison FRQs paired with U.S. v. Lopez — both involve the scope of congressional power but cut in opposite directions. Know both constitutional questions and both answers. The key quote to know: "Let the end be legitimate..." — this is Marshall's test for implied powers.

Quick Facts

VoteUnanimous

ClausesNecessary & Proper · Supremacy

Common Mistakes

✗Forgetting there are TWO questions — students often only know the implied powers holding.

✗Saying "necessary" means absolutely essential — Marshall explicitly rejected this narrow reading.

✗Confusing with Marbury — both are Marshall cases but address completely different questions.

U.S. v. Lopez (1995)Limits on the Commerce Clause Brutus No. 1Predicted this exact expansion