In a 6-3 decision last week, the Supreme Court ruled that President Donald Trump lacks the authority to impose tariffs under the International Emergency Economic Powers Act, marking a significant check on executive power in matters of international trade. The majority opinion, authored by Chief Justice John Roberts, interpreted the statute's language to allow the president to "regulate" imports but not to impose taxes in the form of tariffs. This ruling came in a case challenging Trump's use of the 1977 law to justify broad tariff measures aimed at addressing national security concerns related to steel and aluminum imports from various countries.
The decision echoes a landmark 1953 Supreme Court case, Youngstown Sheet & Tube Co. v. Sawyer, where the Court struck down President Harry Truman's seizure of steel mills during the Korean War. In that 6-3 ruling, Justice Hugo Black's majority opinion held that without explicit congressional authorization, the president could not seize private property, even in an emergency. Now, seven decades later, the Roberts Court has similarly limited presidential action, with Justice Neil Gorsuch's concurring opinion drawing direct parallels to the earlier case's emphasis on separation of powers.
Justice Gorsuch, who joined the majority opinion in full, used his concurrence to elaborate on the major-questions doctrine, a principle he described as requiring the president to identify "clear statutory authority for the extraordinary delegated power he claims." According to the opinion, this doctrine ensures that executives cannot exploit ambiguities in laws to expand their authority. Gorsuch cited historical precedents across various fields, noting that claims to "substantial" powers have long needed a "clear legislative basis" or "definite and unmistakable expression" from Congress.
Gorsuch's concurrence, which may prove influential in future cases, warns against the "steady accretion of executive power." He argued that without such checks, "highly resourceful members of the executive branch have strong incentives to exploit any doubt in Congress’s past work to assume new power for themselves." This perspective, Gorsuch wrote, aligns with the Founders' vision by preventing "the few (or the one)" from expanding power based on "loose or uncertain authority."
The justice also addressed criticisms from the Court's liberal wing. Justices Elena Kagan, Sonia Sotomayor, and Ketanji Brown Jackson dissented, arguing that routine tools of statutory interpretation could achieve the same result without invoking the major-questions doctrine, which they have previously called a "novelty without basis in law" and an "anti-administrative-state stance." Gorsuch countered that their approach was inconsistent, pointing to cases where they adopted broader readings of statutes to support President Joe Biden's policies, such as a vaccine mandate for large companies, COVID-19 regulations on landlords and tenants, and the cancellation of $430 billion in student-loan debt.
"In the past, the liberal justices have criticized the major-questions doctrine as 'a novelty without basis in law' and 'an anti–administrative-state stance,'" Gorsuch wrote. "Gorsuch responded that the major-questions doctrine is not 'anti–administrative state' but instead 'pro-Congress.' In his view, it protects congressional prerogatives from resourceful presidents, who are likely to exploit ambiguities in statutes to seize power for themselves."
Gorsuch expressed concern that once the Court interprets a statute to grant executive power, "that power may prove almost impossible for Congress to retrieve." During oral arguments, he had noted that without a veto-proof supermajority, "Congress, as a practical matter, can’t get this power back once it’s handed it over to the President. It’s a one-way ratchet toward the gradual but continual accretion of power in the executive branch and away from the people’s elected representatives."
Turning to fellow conservatives, Gorsuch critiqued Justice Amy Coney Barrett's concurrence, which joined the majority but sought to frame the major-questions doctrine as a commonsense interpretive tool. Barrett wrote, "I understand Justice Barrett to require Congress always to speak precisely to any major power that it intends to give away. But if the Constitution permits Congress to give the Executive a particular power, who are we to get in the way?" Gorsuch rejected this softening, insisting the doctrine acts as a "dice-loading" rule demanding explicit congressional intent for extraordinary powers.
Justice Brett Kavanaugh, in dissent, argued for an exception in foreign affairs, stating that "strict limitations upon congressional delegation of power to the president over internal affairs do not apply with respect to delegation of power over external affairs." Gorsuch disagreed, warning that such a carve-out could allow Congress to delegate core powers like imposing tariffs, establishing naturalization rules, or funding armies—powers the Framers intended for legislative control.
The sharpest rebuke came toward Justice Clarence Thomas's dissenting opinion, which Gorsuch called an inconsistent application of originalism. Thomas contended that the nondelegation doctrine only bars delegating "core legislative power," defined as making substantive rules affecting life, liberty, or property. Under this view, the power to impose duties on imports could be delegated because "foreign commerce was not within the core legislative power, and engaging in foreign commerce was regarded as a privilege rather than a right."
Gorsuch challenged this historical interpretation, noting its inconsistency with constitutional text, early congressional practice, and Supreme Court precedent. In a pointed historical reference, he observed, "It was duties on foreign tea that triggered the Boston Tea Party." He questioned, "Are we really to believe that the patriots that night in Boston Harbor considered the whole of the tariff power some kingly prerogative?"
The concurrence draws heavily from Justice Robert Jackson's 1953 opinion in the steel-seizure case, where Jackson warned of the need for parliamentary deliberation to restrain executive overreach. Jackson had written, "For all its defects, delays, and inconveniences, men have discovered no technique for long preserving free government except that the Executive be under the law and that the law be made by parliamentary deliberations." Gorsuch echoed this, concluding with a tribute to legislative process: "The deliberative nature of the legislative process was the whole point of its design. Through that process, the Nation can tap the combined wisdom of the people’s elected representatives, not just that of one faction or man."
He added, "If history is any guide, the tables will turn and the day will come when those disappointed by today’s result will appreciate the legislative process for the bulwark of liberty it is." This solo concurrence, issued against a president of Gorsuch's own party, mirrors Jackson's stance in rejecting Truman's emergency claims.
The ruling arrives amid ongoing debates over trade policy, with Trump's tariffs—initially imposed in 2018 on steel and aluminum from countries including China, Canada, Mexico, and the European Union—having sparked retaliatory measures and economic analyses estimating billions in costs to U.S. consumers and businesses. The International Emergency Economic Powers Act, enacted in 1977 post-Watergate to curb presidential overreach, has been invoked over 60 times since, but rarely for tariffs until Trump's administration.
Legal experts see the decision as reinforcing congressional authority in trade, potentially complicating future presidents' use of emergency powers for economic measures. While the majority focused on statutory text, Gorsuch's broader framework could influence cases involving environmental regulations, immigration, or healthcare, where executive actions often hinge on ambiguous delegations. As the Court continues to grapple with the administrative state, this opinion underscores a commitment to clear legislative intent, even as dissenting justices warn of judicial overreach into policy.
Looking ahead, Congress may need to revisit trade statutes to provide explicit tariff authority if desired, though partisan divides make such action uncertain. The decision, handed down on February 14, 2026, from the Supreme Court in Washington, D.C., serves as a reminder of the judiciary's role in maintaining constitutional balances, particularly in an era of expansive executive claims.