Elastic Clause

• Relevant amendment: Tenth

Description: Last clause of Article I, section 8 of the United States (US) Constitution authorizing Congress to make all laws necessary and proper for exercising its enumerated powers and any other power granted by the Constitution to the national government.

Significance: After an 1819 Supreme Court decision, the Elastic Clause provided the basis for the doctrine of implied powers, stretching the powers of the national government beyond those specifically granted by the Constitution.

In 1791, when advising President George Washington on the constitutionality of establishing a national bank, Thomas Jefferson and others opposed to a strong national government maintained that Congress was limited to exercising those powers expressly granted by the Constitution, for example, the power to coin money. All other powers were reserved for the states. Jefferson argued that the necessary and proper clause imposed additional limits on the powers of Congress. The clause limited any use of powers not expressly granted by the Constitution except when such powers were absolutely necessary or indispensable to exercising an enumerated power. For example, a national bank was unconstitutional because the Constitution did not expressly delegate the power to create corporations to Congress and because a bank was not an indispensable means for achieving Congress’s legitimate ends. Jefferson argued that a broader interpretation of the clause would effectively create a national government with unlimited power.

Alexander Hamilton and others opposed Jefferson’s strict construction of the clause, maintaining that the Constitution established an independent national government that, although exercising limited powers, was fully sovereign within the scope of its powers. Hamilton argued that the Elastic Clause had to be broadly interpreted as granting whatever additional powers would assist Congress in carrying out its enumerated powers. The clause allowed Congress to do what was indispensable and whatever was convenient or helpful to achieving its ends. The incorporation of a bank, for example, was constitutional because it was a useful means for Congress to carry out its delegated power to collect taxes.

When the controversy over the incorporation of the Second Bank of the US reached the Supreme Court in McCulloch v. Maryland (1819), Chief Justice John Marshall transformed Hamilton’s loose construction of the clause into constitutional law. In his opinion, he stated that if the ends were legitimate and within the scope of the Constitution, all means that were appropriate and not prohibited, as well as consistent with “the letter and spirit” of the Constitution, were constitutional. His decision meant that the Constitution did not limit the federal government’s powers to those expressly delegated, but included powers implied by Congress’s freedom to choose the means by which it would carry out its responsibilities.

The Elastic Clause has remained essential in allowing Congress to adapt its powers to the changing and evolving circumstances in the US and address issues not covered in the Constitution because they could not have been foreseen at its drafting. For example, the Elastic Clause has been employed to expand Congress' powers under the Commerce Clause. Congress has used the Commerce Clause to pass pivotal legislation related to civil rights and labor conditions that the nation's founders could not have predicted. Implementing the Elastic Clause has allowed these issues to fall into the jurisdiction of Congress. A major twenty-first-century development occurred in NFIB v. Sebelius (2012), where the Supreme Court ruled that Congress could not rely on the Necessary and Proper Clause to justify the Affordable Care Act’s individual mandate. The Court held that compelling individuals to purchase health insurance was not a power “necessary and proper” to regulating interstate commerce, marking a significant limit on congressional authority. This decision signaled that the Elastic Clause does not grant Congress unchecked power, even when paired with the Commerce Clause.

More broadly, modern jurisprudence has placed new constraints on federal power under the Commerce Clause, which in turn narrows the reach of the Necessary and Proper Clause. Beginning with decisions such as United States v. Lopez (1995) and United States v. Morrison (2000), and extending into the twenty-first century, the Court has emphasized that not all activities can be federally regulated simply because they have economic implications. These rulings reflect an ongoing judicial effort to delineate the boundary between state and federal authority, shaping how expansively Congress may invoke the Elastic Clause.

Bibliography

"Elastic Clause - Definition, Examples, Necessary and Proper Clause." Legal Dictionary, 17 Aug. 2016, legaldictionary.net/elastic-clause. Accessed 24 Aug. 2024.

"Enumerated Powers - Federalism - Constitution USA with Peter Sagal." PBS, www.pbs.org/tpt/constitution-usa-peter-sagal/federalism/enumerated-powers. Accessed 24 Aug. 2024.

Fisher, Louis. The Politics of Shared Power: Congress and the Executive. College Station: Texas A&M University Press, 1998.

Gunther, Gerald. John Marshall’s Defense of McCulloch v. Maryland. Stanford, Calif.: Stanford University Press, 1969.

"National Federation of Independent Business v. Sebelius." Oyez, www.oyez.org/cases/2011/11-393. Accessed 11 Dec. 2025.

"Necessary and Proper Clause." Legal Information Institute, www.law.cornell.edu/wex/necessary_and_proper_clause. Accessed 24 Aug. 2024.

Reynolds, Alicia. "Elastic Clause Examples in U.S. History and Constitution." ConstitutionUS.com, constitutionus.com/constitution/elastic-clause-examples-in-us-history-and-constitution. Accessed 24 Aug. 2024.