U.S. Supreme Court Rules IEEPA Tariffs Are Unconstitutional

On February 20, 2026, the United States (U.S.) Supreme Court struck down as unconstitutional the tariffs that U.S. President Donald Trump imposed through various executive orders.  By a 6-3 vote, the justices ruled that the tariffs are beyond the powers confirmed to the president by Congress under the International Emergency Economic Powers Act (IEEPA).