In NLRB v. Jones & Laughlin Steel Corp., decided 5–4 in 1937, the Supreme Court upheld the National Labor Relations Act and ruled that Congress could regulate labor relations at private companies whose operations had a close and substantial relationship to interstate commerce. The decision ended the Court’s resistance to New Deal economic legislation and cleared the way for nearly every major federal labor and commerce regulation that followed.1Justia U.S. Supreme Court Center. NLRB v. Jones and Laughlin Steel Corp., 301 U.S. 1 (1937)
What the Case Was About
In 1936, ten workers at Jones & Laughlin’s steel plant in Aliquippa, Pennsylvania, were fired after trying to organize a union. The National Labor Relations Board investigated, found that the company had discriminated against union members and intimidated employees, and ordered Jones & Laughlin to stop the discrimination, reinstate the ten workers with back pay, and post notices for 30 days pledging no retaliation.1Justia U.S. Supreme Court Center. NLRB v. Jones and Laughlin Steel Corp., 301 U.S. 1 (1937)
The company refused. It appeared at the Board’s hearing only to challenge jurisdiction, then walked out. When the Board asked the Fifth Circuit to enforce its order, the court sided with the company and ruled that the Board’s order exceeded federal power. The Supreme Court took the case.2Legal Information Institute. National Labor Relations Board v. Jones and Laughlin Steel Corp., 301 U.S. 1
Jones & Laughlin was not a small operation. Through 19 subsidiaries, it ran ore mines in Michigan and Minnesota, coal mines in Pennsylvania, limestone quarries across Pennsylvania and West Virginia, ships and barges on the Great Lakes, two railroads, warehouses in Chicago, Detroit, Cincinnati, and Memphis, fabricating shops in New York and New Orleans, and sales offices in 20 cities. The Aliquippa plant alone employed roughly 10,000 people in a town of about 30,000. That scale would matter enormously to the constitutional question.2Legal Information Institute. National Labor Relations Board v. Jones and Laughlin Steel Corp., 301 U.S. 1
The Commerce Clause Question
The Constitution gives Congress power to “regulate Commerce with foreign Nations, and among the several States.”3Constitution Annotated. Article I Section 8 Clause 3 Jones & Laughlin argued that making steel in a Pennsylvania plant was a local activity. Congress could regulate goods moving between states, the company said, but not who a factory could hire or fire.
That argument had recent Supreme Court authority behind it. Two years earlier, in A.L.A. Schechter Poultry Corp. v. United States, the Court had struck down a major New Deal statute by drawing a sharp line between activities that directly affected interstate commerce and those with only indirect effects. The Schechter Court called that distinction “fundamental” and “essential to the maintenance of our constitutional system.”4Justia U.S. Supreme Court Center. A. L. A. Schechter Poultry Corp. v. United States, 295 U.S. 495 (1935) Under that framework, a labor dispute at one factory looked like the textbook definition of a local matter.
The government pushed back on the framing itself. A labor stoppage at a company woven into the economies of a dozen states would not be a local hiccup, its attorneys argued; it would choke steel supplies to manufacturers, builders, and railroads nationwide. The direct-versus-indirect test, they said, ignored how the modern economy actually worked.
What the Court Held
Chief Justice Charles Evans Hughes, writing for a five-justice majority, sided with the government. The opinion did not overrule Schechter Poultry outright, but it moved past the rigid direct-versus-indirect test. The key passage: “Although activities may be intrastate in character when separately considered, if they have such a close and substantial relation to interstate commerce that their control is essential or appropriate to protect that commerce from burdens and obstructions, Congress has the power to exercise that control.”1Justia U.S. Supreme Court Center. NLRB v. Jones and Laughlin Steel Corp., 301 U.S. 1 (1937)
Applied to Jones & Laughlin, the test was easy. The company’s raw materials traveled hundreds of miles from mines to furnaces. Its finished products shipped to warehouses and customers across the country. A stoppage at Aliquippa would ripple through supply chains in every state where the company bought, shipped, or sold. Congress, the majority concluded, had authority to protect that flow of commerce by preventing the unfair labor practices that could bring it to a halt.2Legal Information Institute. National Labor Relations Board v. Jones and Laughlin Steel Corp., 301 U.S. 1
The Wagner Act was constitutional. The NLRB had authority to enforce it. The ten fired workers were entitled to reinstatement and back pay.
The Dissent
Justice James McReynolds, joined by Justices Van Devanter, Sutherland, and Butler, dissented sharply. He stuck with the direct-versus-indirect framework and warned that the majority’s new “close and substantial relation” test had no meaningful limit. If Congress could regulate employment at a steel plant because the company’s products crossed state lines, he asked, what couldn’t it regulate? The Wagner Act, he added, was broad enough to reach even small, purely local businesses.1Justia U.S. Supreme Court Center. NLRB v. Jones and Laughlin Steel Corp., 301 U.S. 1 (1937)
McReynolds framed the stakes in structural terms. “The distinction between what is national and what is local in the activities of commerce is vital to the maintenance of our federal form of government,” he wrote. Expanding federal power to reach effects “so indirect and remote” would, in his view, “effectually obliterate” that distinction.
The Court-Packing Backdrop
The timing shaped how the ruling was read. Roosevelt had watched the Court strike down multiple New Deal programs during his first term, often by narrow margins. On February 5, 1937, he announced a plan to add up to six new justices to the Court for every sitting justice over age 70 who declined to retire. Critics called it court packing.
Weeks later, Justice Owen Roberts, who had previously voted to strike down similar economic regulations, joined the majority in West Coast Hotel Co. v. Parrish to uphold a state minimum wage law.5Justia U.S. Supreme Court Center. West Coast Hotel Co. v. Parrish, 300 U.S. 379 (1937) Roberts then cast the deciding fifth vote in Jones & Laughlin shortly afterward. The press called his shift “the switch in time that saved nine.” Historians still debate whether Roberts changed course because of the court-packing threat, shifting public opinion, or independent legal reasoning. The practical result was clear: the Court stopped blocking New Deal legislation, and Roosevelt’s court-packing plan died in Congress.
Legacy: How the Ruling Reshaped Federal Power
The immediate effect was to end the era in which the Court routinely struck down federal economic regulation. The longer effect came from how later courts used the “close and substantial relation” test as a springboard.
In United States v. Darby (1941), the Court upheld the Fair Labor Standards Act’s minimum wage and maximum hour rules. The opinion cited Jones & Laughlin for the principle that Congress could regulate intrastate activities with a substantial effect on interstate commerce, and it overruled earlier precedent that had limited Congress’s power to bar the interstate shipment of goods produced under substandard conditions.6Justia U.S. Supreme Court Center. United States v. Darby, 312 U.S. 100 (1941)
The reasoning reached its logical endpoint in Wickard v. Filburn (1942), where a unanimous Court held that a farmer growing wheat for his own consumption could be regulated under the Commerce Clause. If enough farmers did the same, the aggregate effect on the national wheat market would be substantial. Justice Robert Jackson’s opinion dropped any remaining pretense of separating “local” from “interstate” activity. What mattered was cumulative economic impact.7Justia U.S. Supreme Court Center. Wickard v. Filburn, 317 U.S. 111 (1942) That aggregation principle, grounded in the rejection of formalistic categories, defined Commerce Clause jurisprudence for the next half century.
The statute the case saved is still the backbone of private-sector labor law. Section 7 of the NLRA guarantees employees the right to organize, join unions, bargain collectively, and engage in other group activity for their mutual benefit, and those protections cover workers who have no union at all. Two coworkers discussing pay, employees raising a safety concern together, or workers circulating a scheduling petition all engage in protected activity.8Office of the Law Revision Counsel. 29 U.S.C. 157 – Right of Employees as to Organization, Collective Bargaining The NLRB still enforces those rights with the same basic tools it used against Jones & Laughlin: investigations, orders of reinstatement and back pay, required notices, and, when necessary, petitions to federal courts for enforcement.9Office of the Law Revision Counsel. 29 U.S.C. 160 – Prevention of Unfair Labor Practices The reach of that agency into industries that would have looked untouchably local in 1937 is the durable measure of what this decision made possible.