Global Economy Faces Fresh Uncertainty After US Supreme Court Strikes Down Trump Tariffs

The U.S. Supreme Court ruled today, February 20, 2026, that President Donald Trump's use of tariffs under the International Emergency Economic Powers Act (IEEPA) was unlawful. In an immediate response to the judicial decision, Donald Trump announced the implementation of new global 10% tariffs for an initial 150-day period. This ruling effectively removes the legal basis for a large tranche of tariffs in the US US, creating a state of immediate uncertainty regarding the future of American trade policy and its impact on the global economy.

The tariffs previously enacted under the IEEPA are estimated to have generated more than $175 billion in revenue. Furthermore, these measures contributed to a shift in the trade-weighted average tariff, which fell from 15.4% to 8.3%. With the legal foundation for these actions now voided, the Trump administration faces significant questions about the status of trade relations with major partners such as China CN, Brazil BR, India IN, and Britain GB.