The U.S. Supreme Court is scheduled to rule on a case over the legality of President Donald Trump’s tariffs.
The high court on Tuesday added a non-argument/conference date to its website and indicated it may announce a decision, but the court has not announced in advance what decision it plans to make.
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Challenges to President Trump’s tariffs have become some of the most high-profile cases in court proceedings amid broader implications for the global economy.
President Trump said in a social media post Friday that such a ruling would be a “terrible blow” to the United States.
“Tariffs have made our country much stronger and more respected, both financially and from a national security standpoint,” Trump said in another post Monday.
However, data on this is mixed. The US gross domestic product (GDP) increased by 4.3% in the third quarter of 2025, marking the first significant increase in two years. On the other hand, job growth in the United States has slowed, with almost no growth seen in sectors that have been heavily affected by tariffs.
“Job growth in sectors with high import exposure has been slower than in sectors with lower import exposure, suggesting that tariffs may be weighing down employment,” Johannes Matschke, senior economist at the Federal Reserve’s Kansas City office, said in a December analysis.
legal discussion
President Trump invoked the International Emergency Economic Powers Act (IEEPA) on imports from various countries in February 2025 in order to deal with a so-called national emergency related to the U.S. trade deficit.
Discussions challenging the legality of the decision began in November. At the time, the court’s liberal justices and some conservative justices questioned the legality of using the 1977 law.
Judge Neil Gorsuch, who was appointed by President Trump during his first term, was also among the skeptics.
“As a practical matter, once Congress delegates power to the president, it cannot take it back,” Gorsuch said at the time.
Chief Justice John Roberts told Attorney General John Sauer, who argued on behalf of the administration, that the imposition of tariffs and taxes “has always been a core authority of Congress.”
The law grants broad executive authority to exercise economic power during a state of national emergency.
The issue reached the Supreme Court after a lower court ruled against the Trump administration, finding that enforcing the law exceeded the administration’s authority.
Among the courts that ruled against the White House was the International Trade Court. In May, a New York court said Congress, not the executive branch, has “exclusive authority to regulate commerce.” That ruling was upheld by the Washington, D.C., Court of Appeals in August.
Legal experts believe the high court is likely to uphold the lower court’s decision.
“Given the concerns of various justices, the Supreme Court will likely rule that IEEPA does not provide the Trump administration with the ability to impose tariffs,” Georgetown University law professor Greg Schaefer told Al Jazeera.
If the Trump administration loses the case, the United States would have to return some of the tariffs.
“It (a ruling against the administration) would mean that people who paid the illegally imposed tariffs would have to be refunded. I think that would be the outcome,” Schaefer added.
Treasury Secretary Scott Bessent said on NBC’s Meet the Press in September that the U.S. “has to return about half of the tariffs.”
The Trump administration has said it will use other statutes to enforce tariffs if the Supreme Court does not rule in its favor.
