Sunday, May 10, 2026 | By DNN247 Economics Desk
US trade court dealt a major blow to the Trump administration’s economic agenda Thursday, ruling two-to-one that the president’s sweeping 10 percent global tariffs, which took effect in February 2026 and triggered a cascade of international retaliatory measures, were imposed without legal authority under a 1970s trade law. The US Court of International Trade sided with a coalition of small businesses that challenged the tariffs, finding that Section 122 of the Trade Act of 1974 did not justify the scale of duties Trump invoked to address America’s trade deficit.
The ruling builds on a January 2026 Supreme Court decision that struck down the administration’s earlier round of tariffs imposed under the International Emergency Economic Powers Act, or IEEPA. In that 6-3 ruling, the Court found that IEEPA did not authorize tariffs. Trump responded in February by invoking Section 122 to impose a fresh 10 percent baseline tariff on imports from virtually all trading partners. Thursday’s trade court ruling found that the law was not an appropriate mechanism for the kind of structural trade deficits Trump cited, which economists say do not constitute the ‘balance of payments crisis’ the law was designed to address.
The Trump administration had argued that a current account deficit of four percent of GDP and a $1.2 trillion annual goods trade deficit justified the duties under Section 122. Economists and trade lawyers who opposed the tariffs contended that the United States was not facing an imminent dollar depreciation or classic balance-of-payments breakdown that the 1974 law was written to remedy. ‘This decision is an important win for American companies that rely on global manufacturing to deliver safe and affordable products,’ said Jay Foreman, CEO of toymaker Basic Fun, one of the plaintiffs.
The ruling plunged financial markets into fresh turbulence. The tariffs, which represented the largest US tax increase as a share of GDP since 1993 and cost the average American household an estimated $1,500 in 2026, had already produced deep distortions across supply chains, retail prices, and international trade flows. Their sudden legal jeopardy raises immediate questions about revenue the government has already collected and whether trading partners who negotiated partial exemptions are now operating in a legal vacuum.
Oxford Economics had already downgraded its global industrial growth forecast from 2.6 percent to 1.6 percent in both 2025 and 2026 in response to tariff escalation. US manufacturing activity is projected to contract by nearly one percent this year, with particularly severe hits in durable goods, mining, and agriculture. Canada, Mexico, China, Japan, South Korea, and the European Union have all implemented retaliatory tariffs affecting an estimated $223 billion of US exports annually.
The pharmaceutical sector faces a separate and potentially even more severe reckoning. The Trump administration signaled that tariffs on pharmaceutical imports could potentially rise toward 200 percent by mid-to-late 2026. That threat has sent pharmaceutical supply chain executives into emergency planning mode, since large portions of the US drug supply depend on active ingredients manufactured in India and China. Patient advocates warn that tariffs at that level would produce drug shortages and price spikes that directly harm American patients.
With the tariff war’s legal foundation now uncertain, the administration faces difficult choices. It could appeal the trade court’s ruling to higher courts, seek emergency stays, invoke alternative legal authorities such as Section 232, or negotiate bilateral deals with trading partners to reduce tensions. The Tax Foundation estimates that if Section 232 tariffs are the only ones that survive legal scrutiny, their long-run impact on US GDP would be a reduction of approximately 0.3 percent, substantially less severe than the broader tariff regime.
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Global trading partners are watching Washington with a combination of legal satisfaction and economic anxiety. The ruling does not automatically reverse tariffs already collected or immediately restore pre-tariff trade flows. Markets remain uncertain about the administration’s next legal move. Negotiations with Japan, South Korea, and India have shown partial progress, while talks with China remain difficult and bilateral trust remains low. The European Union continues to hold significant retaliatory firepower in reserve.
For American households and businesses, the weeks ahead will determine whether the Court’s intervention signals a genuine reversal of the tariff era or merely a legal detour that the administration finds its way around. Either outcome carries enormous consequences for prices, jobs, and America’s relationships with every major trading partner on earth. What is settled is this: the era of tariffs-as-policy has collided with the era of courts-as-checks, and the collision is far from over.
