The Supreme Court on Monday struck down former President Donald Trump's tariffs imposed under the International Emergency Economic Powers Act, ruling 6-3 that the executive branch overstepped its authority. Hours after the decision, the administration announced new tariffs of 10 to 12.5 percent on goods from 60 economies, this time citing Section 301 of the Trade Act of 1974.
A 6-3 Ruling on IEEPA
The court's majority found that the IEEPA tariffs, which had been challenged by importers and several trade groups, did not meet the legal standard for emergency economic powers. The decision effectively nullified the previous tariff regime that had been a centerpiece of Trump's trade policy. The three dissenting justices argued the president had broad discretion under the law.
Legal observers had expected the case to reach the high court after conflicting rulings in lower courts. The justices took up the matter on an expedited schedule, signaling the importance of clarifying the limits of presidential tariff authority under IEEPA.
New Tariffs Under Section 301
The administration did not wait long to respond. Within hours of the ruling, it imposed new tariffs on imports from 60 economies, covering a wide range of industrial and consumer goods. The rates vary by country and product, ranging from 10 percent to 12.5 percent. The action relies on Section 301, a different legal tool that allows the U.S. Trade Representative to retaliate against foreign trade practices deemed unfair.
Unlike IEEPA, which requires a national emergency declaration, Section 301 involves a formal investigation and findings of discriminatory or burdensome trade practices. The administration said the new tariffs target countries that have engaged in what it called persistent trade violations.
What the New Tariffs Cover
The list of 60 economies includes major trading partners and smaller nations alike. The tariffs apply to products ranging from steel and aluminum to electronics and agricultural goods. The administration did not provide a detailed breakdown of the expected revenue or the specific trade practices cited for each country.
Importers and domestic manufacturers now face the task of adjusting supply chains to account for the new duties. Some business groups had already warned that a rapid shift from one tariff program to another would create uncertainty for companies that had planned around the IEEPA rates.
Unresolved Questions
The Supreme Court ruling leaves open the question of whether Section 301 tariffs could face similar legal challenges. Several lawsuits are already pending against previous Section 301 tariffs on Chinese goods, and the new action could invite fresh litigation. The administration has not yet said how long the new tariffs will remain in place or under what conditions they might be lifted.




