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. 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.