US court questions 10% tariffs

Three judges on the U.S. Court of International Trade spent Friday asking a basic question the White House could not easily wave away: does a big trade deficit let a president put a 10% tax on imports from nearly every country on earth? The case was argued on April 10, 2026, in Manhattan by 24 states and two small businesses seeking to block the tariff. (apnews.com) (usnews.com) The tariff at issue is the flat 10% baseline Trump ordered on imports from all countries, with the administration saying it was needed to answer “large and persistent” United States goods trade deficits. The order was signed on April 2, 2025, and the 10% rate took effect on April 5, 2025. (federalregister.gov) (whitehouse.gov) The legal lever is a 1977 law called the International Emergency Economic Powers Act. That law lets a president regulate economic transactions after declaring a national emergency tied to an “unusual and extraordinary threat” coming from outside the United States. (congress.gov) (govinfo.gov) That is where the fight gets sharp. The states and companies say a trade deficit is a long-running economic condition, not the kind of sudden outside threat Congress had in mind when it wrote a sanctions law in the Cold War era. (apnews.com) (congress.gov) The administration says the statute is broad and that the word “regulate” can include tariffs. The challengers say a tariff is not just regulation but a tax on imports, and taxes of that scale usually need a clearer grant from Congress. (federalregister.gov) (apnews.com) This is not happening in a vacuum. Reuters reported that the challengers told the court the new tariff sidesteps a recent Supreme Court ruling that knocked out most of Trump’s earlier tariffs, so the judges were hearing a second-round version of the same power struggle between the White House and the courts. (reuters.com) The courtroom lineup showed how wide the fallout is. Oregon led a coalition of mostly Democratic-led states, and two small businesses joined them, arguing that a blanket import tax hits state budgets, procurement, and the cost of goods they sell before any appeal can be finished. (apnews.com) (bloomberg.com) For companies, the legal uncertainty is almost as costly as the tariff itself. A factory that signs a 12-month supply contract has to guess whether the extra 10% will still exist when the shipment lands, and that guess flows straight into prices, margins, and where it buys parts. (cbp.gov) (reuters.com) Congress’s own scorekeepers have already shown how much these tariffs move the numbers. In March 2026, the Congressional Budget Office said ending tariffs imposed under the emergency-powers law would lower the effective tariff rate on imported goods by about 8 percentage points from the level it had used the month before. (cbo.gov) The judges did not rule from the bench on April 10, 2026, so the tariff stays in place for now. But the questions they asked made one thing plain: before businesses can know whether the 10% charge is a durable new floor or a temporary detour, the court first has to decide whether the president’s emergency key actually fits this lock. (apnews.com) (reuters.com)