On February 20, 2026, the United States Supreme Court made a historic ruling that sent a clear and strong message to President Donald Trump: the American system of government has a separation of powers, which this president has repeatedly tested and at times seemed determined to ignore.
The Decision
In the combined cases of Learning Resources, Inc. v. Trump and V.O.S. Selections v. United States, the Supreme Court ruled 6–3 that the broad tariffs that President Trump had put in place on his own were against the law. The tariffs in question are thought to make up about two-thirds of all duties charged by the government. They were put in place under the International Emergency Economic Powers Act (IEEPA), a 1977 law that lets the president "regulate ... importation or exportation" of property during declared national emergencies.
Chief Justice John Roberts, writing for the majority, was clear: "The government reads IEEPA to give the President power to unilaterally impose unbounded tariffs and change them at will. Those words can't carry that much weight. He said that IEEPA "doesn't mention tariffs or duties," that Congress has never used the word "regulate" to give the government the power to tax, and that "until now no President has read IEEPA to give such power."
Roberts was with Justices Sonia Sotomayor, Elena Kagan, Neil Gorsuch, Amy Coney Barrett, and Ketanji Brown Jackson. Justices Clarence Thomas, Samuel Alito, and Brett Kavanaugh disagreed. It hurt even more that two of Trump's own appointees, Gorsuch and Barrett, voted against the administration.
Most people also brought up the "major questions" doctrine, which says that Congress must be clear when it gives someone else the power to make decisions that are very important to the economy or politics. This was the same doctrine the Court used in 2023 to block President Biden's plan to forgive student loans. This shows that the Court always checks for unilateral executive overreach, no matter which party is in power.
The Range of the Tariffs
The stakes were very high. After taking office in January 2025, President Trump used IEEPA to put in place two big sets of tariffs. The first set of tariffs, called the "trafficking and immigration tariffs," was aimed at goods coming from Canada, Mexico, and China. They charged 25% on goods from Canada and Mexico and 10% on goods from China, which later went up to 145% on goods from China. The administration said that the flow of fentanyl into the US was the reason for the emergency. The second set of tariffs, known as the "Liberation Day" tariffs, was announced on April 2, 2025. They put a baseline duty of 10% on imports from almost every country in the world, with much higher rates on dozens of trading partners, up to 50% on India and Brazil.
The Tax Foundation says that the IEEPA tariffs had already brought in more than $160 billion in revenue by the time of the ruling and were expected to bring in $1.4 trillion over the next ten years. The U.S. tariff rate that worked went from 2.4% in 2024 to 7.7% in 2025, the highest level since 1947. These tariffs added about $1,000 to the cost of living for the average American family in 2025 and about $1,300 in 2026. The Tax Foundation said that if the IEEPA tariffs had stayed in place, the U.S. GDP would have shrunk by 0.3% in the long run.
Every lower court that looked at the tariffs said they were illegal. V.O.S. Selections, a wine importer from New York, brought a case to the U.S. Court of International Trade on May 28, 2025, and the court unanimously struck down the IEEPA tariffs. On August 29, 2025, the Federal Circuit upheld that decision en banc. In a different case, a federal district court in Washington ruled against the government in a case brought by Learning Resources, an educational toy company based in Illinois. The Supreme Court heard the case quickly, with oral arguments on November 5, 2025.
The Law Is Alive and Well
The rule of law in the United States held strong, even when it was put to the test. The Supreme Court made it clear that tariffs were not okay, even though it had given the Trump administration a lot of freedom in the past to make emergency decisions about immigration, firing heads of independent agencies, and huge cuts to government spending. Georgetown Law professor Steve Vladeck said that the Court's emergency rulings had been controversial, but this was the first Trump-related case to go through a full merits review. The outcome was "an overwhelming loss for Trump on both the specific legal question and the more general ability to broadly use statutes like IEEPA."
Trump had tried to pressure the justices ahead of time by saying publicly that there would be an "economic crisis of historic proportions" if they ruled against his tariff policy. The justices did not change their minds.
Trump's Angry Reaction
President Trump responded quickly and angrily. He said he was "deeply disappointed" by the decision and that he was "ashamed of certain members of the court, absolutely ashamed for not having the courage to do what's right for our country." He called the justices who voted against him "fools" and "lapdogs," saying that they were swayed by liberal partisanship and even China. This is even though three of the six justices were appointed by Republican presidents and two by Trump himself.
To avoid admitting defeat, the president quickly used Section 122 of the Trade Act of 1974 to sign an executive order that put a 10% global tariff in place on February 25. But Section 122 tariffs can't go higher than 15% and will end after 150 days unless Congress agrees to keep them going. Trump quickly made it clear that he would push to the limit by posting on social media that he wanted to raise the tariff to 15%. At the same time, his administration announced new national security investigations under Section 301 of the Trade Act of 1974. These could be used to make new tariffs that don't have a time limit or a cap.
Trump said he would "seek alternatives to the Supreme Court," which was very scary because he didn't explain what he meant. This made constitutional scholars very worried and made people think about a bigger institutional crisis. Mitch McConnell, a former Senate Majority Leader and one of the few well-known Republicans to publicly praise the ruling, said, "Congress' role in trade policy, as I have warned many times, is not an inconvenience to avoid. " If the executive wants to make trade rules that affect American producers and consumers, the way forward is clear: "convince their representatives under Article I."
A Split Between Republicans and Citizens
The Supreme Court's decision showed and made worse divisions that were already there in the Republican Party and among American voters.
There has long been a part of the party, represented by people like McConnell and the traditional free-trade establishment, that supports America's economic power but opposes protectionism that only affects one country. For these Republicans, the ruling was a win for them and a reaffirmation of the legislative branch's constitutional power over taxes and trade.
But Trump's populist base saw tariffs as a way to punish foreign competitors and protect American businesses, which they saw as a sign of economic nationalism. The fight between these two groups has only gotten worse as the real-world costs of the tariffs became too big to ignore. The tariffs were passed along the supply chain to businesses and consumers, who saw prices go up on everything from groceries to electronics. Building a home costs a lot more. The average household had to deal with a real financial burden, and for many working-class Trump supporters, the rising cost of living hit the hardest.
Justice Kavanaugh agreed with the dissent and said that the government "may have to refund billions of dollars to importers who paid the IEEPA tariffs, even though some importers may have already passed on costs to consumers." The Court sent the question of refunds back to the U.S. Court of International Trade, and companies have already started filing claims. FedEx was the first big company to sue for a full refund.
An Earthquake
This is a huge event in every way, legally, politically, and economically. The Supreme Court has taken away the White House's main economic policy, stopped the biggest increase in executive power at the expense of legislative power in recent memory, and started a time of great uncertainty in global trade.
There are three levels of importance to the ruling.
First, it reaffirms the separation of powers in the Constitution. The Constitution's Article I, Section 8 gives Congress the power to "lay and collect Taxes, Duties, Imposts, and Excises." The Court traced the power to set tariffs back to this section. As the majority opinion made clear, tariffs have always been seen as a key way for the government to collect taxes, and they have historically brought in a lot of money for the federal government. The framers purposely gave Congress "access to the pockets of the people." This ruling is a very important reminder that checks and balances still work in a time when the executive branch has gained a lot of power. Its message is heard all over the world, telling democracies that the rule of law can stand up to the pressures of populist authoritarianism.
Second, it takes away the president's most powerful tool for the economy. Trump had pushed tariffs as a way to fix everything: lower the huge U.S. trade deficit, get trading partners to give in, make money, and even pay for tax cuts, according to the administration. The Court has now taken this weapon away, or at least made it much less powerful than it used to be. The temporary Section 122 duties and the remaining Section 232 tariffs on steel, aluminum, autos, and other specific sectors will stay in place. These tariffs are expected to bring in $635 billion over the next ten years. But the broad, unlimited power to set tariffs that Trump said he had is gone.
Third, it lessens the damage to the world economy. The world's biggest economy breaking up the post-war trade order has done almost nothing to help the global economy in the last few years. The Council on Foreign Relations said that without the IEEPA tariffs, the average effective U.S. tariff rate drops to about 9.1%. This is still the highest rate since 1946, but it's much lower than the 16.9% rate that would have been in effect if the tariffs had stayed in place. International responses have been quick: the EU put off ratifying its trade deal with the U.S., Japan asked for guarantees that new measures would not make things worse, and China said it now has more power before planned talks.
Changing the Agenda: The Crisis in Iran
Now, Trump's lawyers will have to work quickly to rebuild the tariff system on different legal grounds. But the president needs a big breakthrough right away, something that will take over the news cycle, push the tariff defeat and other issues like the Epstein files out of the headlines, and bring back his carefully crafted image as a winner who is respected.
The crisis in Iran gives us exactly that chance. The U.S. military was in the middle of its biggest buildup in the Middle East since the June 2025 strikes on Iran's nuclear facilities, which Trump called "Midnight Hammer." This happened on the same day the Supreme Court made its tariff decision. Two aircraft carrier strike groups, the USS Abraham Lincoln and the USS Gerald R. Ford (the largest warship in the US), are now heading to the area. They are joined by at least 15 destroyers, guided-missile submarines, and an unknown number of attack submarines. Defense experts say that about a third of the U.S. Navy's active fleet is now in or near the Persian Gulf. More than 50 more fighter jets, such as the stealthy F-22 Raptors and F-35 Lightning IIs, have been sent to bases in Europe and the Middle East.
Trump has told Iran that it has "10 to 15 days at most" to agree to a deal that would stop uranium enrichment on Iranian soil, cut its stockpile of ballistic missiles, and break ties with proxy forces. There hasn't been much progress in the indirect talks in Oman and Geneva. Iran has also shown its military strength by holding IRGC war games in the Strait of Hormuz, joint naval exercises with Russia in the Sea of Oman, and threats that any U.S. aggression will be met "decisively and proportionately."
Trump is a great communicator and a master at changing the stories that the media tells. You should never underestimate him. He has used strength and unpredictability to play every card, trying to scare his opponents into doing what he wants. But the Supreme Court's decision may have changed the math. If the highest court in the land can say no and make it stick, people in other countries and at home may be more willing to fight back than they have been in the past.
The effects of that change on a world order that is already under a lot of stress are still unknown.