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Ars Technica

Microsoft issues emergency update for macOS and Linux ASP.NET threat Anthropic tested removing Claude Code from the Pro plan Coyote vs. Acme is finally getting released—with a killer trailer Google unveils two new TPUs designed for the "agentic era" Tabloid reports linking 10 missing and dead scientists spur FBI probe Physicists think they've solved the muon mystery New court ruling blocks many of the government's anti-renewable policies Indian med student rakes in thousands with AI-generated MAGA hottie As EV batteries improve, ChargePoint debuts 600 kW fast charger Our favorite gear at Sea Otter Classic wasn't the bikes—it was the accessories Investors lost billions on Trump’s memecoin. Another gala won’t fix that. 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Report: Meta will train AI agents by tracking employees' mouse, keyboard use Microsoft removes Call of Duty from Game Pass, lowers subscription pricing Framework Laptop 13 Pro is a major overhaul for the modular, upgradeable laptop Framework Laptop 16 upgrades make it look less like an unfinished prototype Internal emails show how Amazon raises prices across the Internet, lawsuit says Anthropic gets $5B investment from Amazon, will use it to buy Amazon chips CATL's new LFP battery can charge from 10 to 98% in less than 7 minutes AMD Ryzen 9 9950X3D2 Dual Edition review: Tons of cache for tons of dollars What's the deal with spacesuits for the Moon? Will they be ready in time? 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Court rules Trump's 10% tariff is just as illegal as the tariff it replaced
Ashley Belan · 2026-05-09 · via Ars Technica

Words have meaning, court rules

Trump’s vow to impose tariffs a “different way” already has the tech industry on edge.

The day after the Supreme Court struck down a set of Donald Trump’s emergency tariffs, the president quickly imposed another, using a never-before-invoked provision of a decades-old trade law to order a global 10 percent tariff on most imports.

Now, that second set of tariffs has been deemed illegal, and there are no more emergency levers that Trump can pull to try to replace them any time soon. That leaves Trump without much negotiation leverage a week before he’s set to meet with China’s President Xi Jinping, who already appeared to have the upper hand heading into talks.

For Trump, when the US Court of International Trade invalidated his global tariffs, his key trade policy—which relies on imposing tariffs to supposedly drive more manufacturing into the US—was put at risk of being gutted.

Moving forward, Trump won’t be able to rely on the law to collect the global tariffs.

Lucky for Trump, the international trade court’s narrow ruling did not require a universal injunction blocking tariffs nationwide, and it limited refunds to only importer plaintiffs who sued. That could help the Trump administration avoid even more chaos after Customs and Border Patrol recently began processing refund requests to comply with the Supreme Court ruling.

However, it’s unclear if the court’s ruling could prompt additional lawsuits from other importers that are seeking refunds, as well as anyone who can argue they have been harmed by the global tariffs, such as non-importer customers who can prove they paid higher prices linked to tariffs.

Trump will most likely appeal the ruling. But in the meantime, it likely puts immediate pressure on his administration to quickly conclude investigations into tariff regimes that may be available under other statutes. That could take weeks, if not months, analysts expect.

On Friday, Trump “criticized the judges” at the international trade court, while telling reporters that he would pursue his tariff agenda under other authorities, The New York Times reported.

“So, we always do it a different way,” Trump said. “We get one ruling, and we do it a different way.”

Why the global tariff is illegal

In a 2-1 ruling, Chief Judge Mark A. Barnett and Judge Claire R. Kelly decided that tariffs that Trump imposed under Section 122 of the Trade Act of 1974 were illegal.

Trump had tried to argue that the law allowed him “to impose temporary surcharges up to 15 percent” in order to combat “fundamental international payments problems” and “to deal with large and serious United States balance-of-payments deficits.” If the court allowed the temporary tariffs, he had planned to impose even steeper tariffs under the authority, but the unfavorable court ruling obviously hobbled that strategy.

Fatal for Trump, his argument relied on the caveat that he was authorized to decide what was considered a “balance-of-payments” deficit. Trump’s advisors had agreed that was a “malleable phrase.”

Disputing that, the importers suing successfully argued that Trump had unlawfully redefined the term. They alleged he’d twisted its meaning in a way that ignored the circumstances when the law was initially drafted—which was back when the US dollar was pegged to gold. The importers emphasized that “the President lacked authority to invoke Section 122 because large and serious balance-of-payments deficits cannot occur in a floating exchange rate monetary system,” which the US adopted after abandoning the gold standard. To sum it up, Trump had no authority because the US no longer uses the gold standard, they argued.

The court agreed that Congress couldn’t have intended to grant Trump such expansive authority as he argued was acceptable under the law. “If the President has the ability to select among the sub-accounts to identify a balance-of-payments deficit, unless every sub-account is balanced, the President would always be able to identify a balance-of-payments deficit,” the majority ruled.

In a footnote, the majority said that Trump had also argued that the phrase “fundamental international payments problems” should not constrain him “at all.” The court did not have to rule on that matter, but judges clarified that “the court cannot accept Defendants’ interpretation that disclaims the existence of any meaningful intelligible principle in either ‘fundamental international payments problems’ or ‘balance-of- payment deficits.’” In its summary, the court ruled that words have meanings.

Ultimately, the court put forward its own interpretation of the statute, which rejects both sides’ readings of Section 122, the dissenting opinion from Judge Timothy C. Stanceu said.

That judge did not fight for Trump to keep his tariffs, necessarily. Instead, he disagreed with the court’s interpretation, as well as the timing of the ruling, arguing that parties should have been given time to respond to the court’s interpretation before the court issued an opinion.

“We are not experts in international macroeconomics matters and should hesitate to question whether it was reasonable for the President to rely on” calculations that the majority deemed in line with legislative history, “rather than a calculation of his own that may have been acceptable,” Stanceu wrote. 

Claiming there were no factual disputes to weigh, the majority agreed that plaintiffs showed that harms from unlawful tariffs were imminent and ongoing, requiring relief in the form of a permanent injunction that must be granted once the court reached a decision on how to interpret the statute.

Trump’s efforts to block the injunction by arguing that it would intrude on his conduct of foreign affairs were “unpersuasive,” judges ruled, finding instead that “enjoining unlawful conduct is in the public interest.”

What’s Trump’s next move?

What happens next is anyone’s guess, but don’t expect Trump to give up on tariffs.

After the Supreme Court required refunds on Trump’s so-called reciprocal tariffs under the International Emergency Economic Powers Act (IEEPA), both the US government and US businesses faced lawsuits not just from importers, but companies dealing with importers and those companies’ customers.

Trump has made it clear that he is not happy about court-ordered refunds, which some businesses should start receiving next week, Reuters reported. Last month, he cheered news that Apple and Amazon had yet to request refunds, which CNBC reported was due to fears of “offending” Trump. Deeming that response a sign that those companies understood the way Trump operates, he said, “I’ll remember” any companies that “honor” him by letting the US keep the unlawfully collected IEEPA tariffs.

Ars could not reach Apple or Amazon to clarify their positions on IEEPA tariff refunds.

Most likely, Trump is relieved that the international trade court did not require a similar universal injunction or widespread refunds on Section 122 tariffs. Notably, the president had griped that the Supreme Court failed in its opinion to include a line that said, “you don’t have to pay back tariffs that have already been received,” CNBC reported, suggesting that one part of his tariff strategy was to seize as many duties as he could and hope the courts would not order refunds.

No matter what happens with Section 122 refunds, Trump will probably prioritize concluding “two trade investigations under a legal provision known as Section 301” now that future Section 122 tariffs are unavailable, the NYT reported.

Currently, the United States trade representative is holding stakeholder hearings on those investigations, with the last hearing scheduled Friday and new tariffs expected to be announced as soon as this July.

Advocating for narrow tariffs are groups representing tech stakeholders, including the trade group the Consumer Technology Association and the think tank the Information Technology and Innovation Foundation (which Apple “supports”), Politico reported. They’ve urged USTR to narrowly focus on China—rather than all of the US trading partners—when imposing Section 301 tariffs. Otherwise, Trump’s goal of forcing more manufacturing into the US will face impediments, as tech companies will once again be rocked with high costs and supply chain uncertainties, they warned.

“Broad, economy-wide tariffs raise costs for US manufacturers, retailers and consumers while delivering limited enforcement benefits,” CTA’s vice president of international trade, Ed Brzytwa, reportedly testified. “Restricting access or increasing the cost of inputs that aren’t manufactured in sufficient quantities in the United States—or aren’t made here at all—can increase costs, reduce competitiveness and discourage investment in US manufacturing.”

Photo of Ashley Belanger

Ashley is a senior policy reporter for Ars Technica, dedicated to tracking social impacts of emerging policies and new technologies. She is a Chicago-based journalist with 20 years of experience.

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