U.S. President Donald Trump reacted angrily after the Supreme Court of the United States struck down his global tariffs, claiming he lacked the authority to unilaterally impose them. Despite the ruling, Trump quickly signed a new proclamation imposing a 10% tariff on imports from all countries.
The Supreme Court’s landmark 6–3 decision challenged the administration’s use of the 1977 International Emergency Economic Powers Act (IEEPA). Chief Justice John Roberts, writing for the majority, emphasized that only Congress holds constitutional power to levy taxes and duties, rejecting Trump’s claim of “extraordinary” presidential authority during peacetime.
As reported by Reuters, Trump expressed frustration with certain justices, saying he was “ashamed” of their decisions and insinuating foreign influence on the court. He maintained that the ruling would not deter him, declaring that his administration had “numerous other ways” to enforce tariffs and protect U.S. economic interests.
Hours after the ruling, Trump signed an executive order repealing the tariffs invalidated by the court and simultaneously imposed a 10% duty on most imports under Section 122 of the Trade Act of 1974. This law permits temporary tariffs of up to 15% for 150 days to address “fundamental international payments problems,” though legal challenges are expected.
The decision raises questions over $175 billion in previously collected tariffs and introduces renewed uncertainty in global markets. Analysts warn that U.S. businesses, investors, and trading partners will face new confusion as the country navigates its evolving trade policy. Economists also noted that this cycle of rulings and executive action may prolong volatility in international trade.
U.S. Treasury Secretary Scott Bessent said the ruling removes some presidential leverage but could make remaining powers “more draconian” by giving authority for embargoes in certain situations. Meanwhile, global markets reacted cautiously, with analysts predicting a period of heightened uncertainty as countries assess how the new tariffs will affect trade flows.
Trump’s use of Section 122 marks the first time a president has relied on this provision, giving temporary authority to impose tariffs across the board. While it restores some control, legal observers warn that congressional approval will be required to extend these tariffs beyond 150 days, setting the stage for potential court battles in the months ahead.


