The essentials
Supreme Court invalidated IEEPA tariffs; administration shifted to Section 301 authority for new trade restrictions.
The Supreme Court struck down tariffs imposed under the International Emergency Economic Powers Act (IEEPA) in February 2025, shifting the legal basis for trade restrictions. In response, the Trump administration invoked Section 301 of the Trade Act to impose new double-digit tariffs on 59 countries and the EU, anchoring its authority in a different statutory framework.
The administration defended Section 301 tariffs as a legally durable tool, positioning this trade authority as more resilient to judicial challenge than its predecessor approach. Meanwhile, temporary 10% worldwide tariffs expired at midnight on July 24, 2025, marking the conclusion of an interim measure.
The sequence reflects a strategic recalibration of tariff authority following the court's decision, with the administration moving from emergency powers to established trade law provisions to maintain its trade policy agenda.
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Court decision forces administration to ground tariffs differently
The Supreme Court's February 2025 ruling eliminated one legal pathway for tariffs, requiring the administration to anchor its trade authority elsewhere. By invoking Section 301, officials repositioned tariff-setting within a distinct statutory framework, potentially subject to different legal vulnerabilities and defenses.
Administration maintains tariff agenda through alternative legal mechanism
Despite the court setback, the Trump administration preserved its tariff strategy by deploying Section 301, enabling new double-digit tariffs on 59 countries and the EU. This shift demonstrates the administration's commitment to trade restrictions while adapting to changed legal circumstances.