The Supreme Court on Thursday curtailed the authority of the executive branch to impose tariffs, striking down a key component of the Trump administration’s trade policy. The ruling, in Transvaco S.A. V. United States, centers on the constitutional allocation of tariff-setting power, reaffirming Congress’s primary role in regulating international commerce.
At issue was a 2018 tariff imposed by then-President Trump on steel imports, justified under Section 232 of the Trade Expansion Act of 1962, which allows the president to seize action to protect national security interests. Transvaco, a Brazilian steel company, argued the tariff exceeded presidential authority, effectively legislating trade policy without congressional approval. The Court, in a 6-3 decision, sided with Transvaco, finding that the statute does not delegate to the President the power to impose tariffs based on his own determination of what constitutes a national security threat.
The majority opinion, delivered by Justice Elena Kagan, emphasized the importance of maintaining the balance of power between the executive and legislative branches. “The Constitution vests the power to regulate foreign commerce in Congress,” Kagan wrote. “That power includes the power to impose tariffs. While the President has some authority to act in the realm of foreign affairs, that authority is not unlimited.”
The decision effectively invalidates the legal basis for several tariffs implemented during the Trump administration, including those on steel and aluminum, as well as subsequent tariffs imposed on goods from China. However, the ruling does not automatically eliminate those tariffs. their future now rests with Congress. Representative Gregory Meeks, ranking member of the House Foreign Affairs Committee, released a statement praising the Court’s decision, stating it “reaffirms Congress’s constitutional authority over trade policy.”
The Biden administration has not yet issued a comprehensive response to the ruling. The Commerce Department continues to review Section 232 investigations, and the White House has indicated it is assessing the implications of the decision for ongoing trade negotiations. The ruling comes as the administration is grappling with complex trade relationships, particularly with China, and as Congress debates the renewal of trade promotion authority.
The Peterson Institute for International Economics described the ruling as a “welcome” development, arguing that the Trump administration’s use of tariffs had disrupted global trade and harmed American businesses. The Institute noted that the decision could pave the way for a more predictable and rules-based international trading system.
The Supreme Court’s decision does not address the broader question of whether the President has the authority to impose tariffs in response to unfair trade practices, such as dumping or subsidies. Those issues are typically addressed through the World Trade Organization and other international trade agreements. The Court specifically focused on the national security justification for the tariffs, finding that the statute did not provide sufficient guidance to the President in exercising that authority.
Legal experts anticipate further litigation over the scope of presidential authority in trade policy. The ruling leaves open the possibility that Congress could amend Section 232 to provide clearer guidelines for the President’s use of tariffs. As of Friday, no legislative action has been scheduled to address the issue, and the future of the affected tariffs remains uncertain.
