Home/News/Blog/What McCulloch v. Maryland (1819) Means for American Law Today

What McCulloch v. Maryland (1819) Means for American Law Today

McCulloch v. Maryland remains one of the Supreme Court's most important decisions, shaping federal power, state law, and complex litigation today.

June 7, 2026

Published by Jazlowiecki & Jazlowiecki, LLC | Bristol, CT

McCulloch v. Maryland is one of the most important Supreme Court decisions in American history, and more than 200 years later, it continues to shape how federal and state law interact across every area of legal practice, including personal injury, mass disaster litigation, and federal court jurisdiction.

At Jazlowiecki & Jazlowiecki, we have practiced law for over 50 years. Understanding the constitutional foundations of federal power, including landmark cases like McCulloch, informs how we approach complex cases that cross state lines or involve federal law.

What Was McCulloch v. Maryland?

In 1819, the United States Supreme Court decided McCulloch v. Maryland, a case that arose from a dispute between the Second Bank of the United States and the state of Maryland. Maryland had attempted to tax the federal bank operating within its borders. James McCulloch, a cashier at the Baltimore branch, refused to pay the tax. The case reached the Supreme Court, where Chief Justice John Marshall delivered one of the most consequential opinions in the Court's history.

The Court addressed two central questions:

  • Did Congress have the authority to establish a national bank?
  • Could a state tax a federal institution operating within its borders?

What the Court Decided

Chief Justice Marshall answered both questions decisively. On the first, the Court held that Congress had the implied power to create a national bank under the Necessary and Proper Clause of the Constitution, even though the Constitution does not explicitly mention a national bank. Marshall's reasoning established the doctrine of implied powers: the federal government possesses not only the powers explicitly listed in the Constitution but also those reasonably necessary to carry them out.

On the second question, the Court held that Maryland could not tax the federal bank. In one of the most quoted lines in constitutional law, Marshall wrote that "the power to tax involves the power to destroy," meaning a state cannot use its taxing authority to undermine a legitimate federal institution.

The power to tax involves the power to destroy.

Why McCulloch Still Matters

The principles established in McCulloch v. Maryland are foundational to how American law operates today:

  • Federal supremacy. The Supremacy Clause, reinforced by McCulloch, means that valid federal law takes precedence over conflicting state law. This matters in areas from environmental regulation to workplace safety to mass disaster litigation.
  • Implied powers. Congress routinely acts in areas not explicitly mentioned in the Constitution, from regulating interstate commerce to establishing federal courts, all grounded in the implied powers doctrine McCulloch confirmed.
  • Limits on state interference with federal action. States cannot pass laws that effectively obstruct or burden the legitimate exercise of federal power. This principle has been applied in countless cases since 1819.

How This Connects to Personal Injury and Federal Litigation

For individuals seriously injured in accidents involving interstate transportation, mass disasters, aviation incidents, or products regulated by federal agencies, the interplay between federal and state law is directly relevant.

Cases involving Amtrak trains, interstate bus lines, commercial trucks, or aviation disasters often implicate federal regulations and may be litigated in federal court. The constitutional framework established in McCulloch, including federal supremacy, implied congressional authority, and limits on state interference, shapes the legal landscape in which these cases unfold.

At Jazlowiecki & Jazlowiecki, our attorneys are admitted in Connecticut, New York, the District of Columbia, and before the United States Supreme Court. We have handled mass disaster cases at the federal level for over 50 years, including cases arising from the Lac-Megantic train disaster and major bus accidents across the United States and Canada.

Speak With an Experienced Federal Litigation Attorney

If you or a family member has been seriously injured in an accident involving interstate transportation, a mass disaster, or a federally regulated industry, the constitutional and jurisdictional questions involved are complex. You need attorneys with experience in both state and federal courts.

Jazlowiecki & Jazlowiecki, LLC has been representing seriously injured clients since 1974. We offer free case evaluations with no fee unless we win.

Call (860) 589-8000 or request a free case evaluation. Our office is located at 11 Lincoln Ave Suite 6, Bristol, CT 06010.

Jazlowiecki & Jazlowiecki, LLC is a Connecticut personal injury law firm representing clients in serious injury, mass transportation, mass disaster, and mesothelioma cases. Edward A. Jazlowiecki is admitted before the United States Supreme Court.

Get your free case evaluation today.