WASHINGTON, Feb 21, (AP): The Supreme Court struck down President Donald Trump's far-reaching global tariffs on Friday, handing him a stinging loss that sparked a furious attack on the court he helped shape. Trump said he was "absolutely ashamed” of some justices who ruled 6-3 against him, calling them "disloyal to our Constitution" and "lapdogs."

At one point he even raised the specter of foreign influence without citing any evidence. The decision could have ripple effects on economies around the globe after Trump's moves to remake post-World War II trading alliances by wielding tariffs as a weapon. But an unbowed Trump pledged to impose a new global 10% tariff under a law that's restricted to 150 days and has never been used to apply tariffs before.

"Their decision is incorrect,” he said. "But it doesn’t matter because we have very powerful alternatives.” The court's ruling found tariffs that Trump imposed under an emergency powers law were unconstitutional, including the sweeping "reciprocal” tariffs he levied on nearly every other country. Trump appointed three of the justices on the nation’s highest court during his first term, and has scored a series of short-term wins that have allowed him to move ahead with key policies.

Tariffs, though, were the first major piece of Trump's broad agenda to come squarely before the Supreme Court for a final ruling, after lower courts had also sided against the president. The majority found that it is unconstitutional for the president to unilaterally set and change tariffs because taxation power clearly belongs to Congress.

"The Framers did not vest any part of the taxing power in the Executive Branch,” Chief Justice John Roberts wrote. Justices Brett Kavanaugh, Samuel Alito and Clarence Thomas dissented. "The tariffs at issue here may or may not be wise policy. But as a matter of text, history, and precedent, they are clearly lawful,” Kavanaugh wrote. Trump praised his 63-page dissent as "genius.”

The court majority did not address whether businesses could get refunded for the billions they have collectively paid in tariffs. Many companies, including the big-box warehouse chain Costco, have already lined up in lower courts to demand refunds. Kavanaugh noted the process could be complicated. "The Court says nothing today about whether, and if so how, the Government should go about returning the billions of dollars that it has collected from importers.

But that process is likely to be a ‘mess,’ as was acknowledged at oral argument,” he wrote. The Treasury had collected more than $133 billion from the import taxes the president has imposed under the emergency powers law as of December, federal data shows. The impact over the next decade has been estimated at some $3 trillion.