After more than three months of deliberation and delay, the Supreme Court finally announced a decision on tariffs. The justices struck a 6 to 3 blow against President Trump’s strategy. It took President Trump only three hours to announce his response to protect American workers and industries. First, let’s look at what the court did. The Supreme Court struck down President Trump’s tariffs issued under the International Emergency Economic Powers Act (IEEPA). Chief Justice Roberts, Justice Gorsuch, and Justice Barrett joined the court’s three liberals in ripping out a key pillar of the president’s economic and foreign policy agenda. President Trump’s tariffs raised more than $200 billion last year and were on track to raise $350 billion this year. But they accomplished far more than that. Trump’s tariffs were a powerful negotiating tool.