
A US federal court is hearing arguments on whether Trump's ten percent global import tariff, imposed in February, violates a Supreme Court ruling. Twenty-four states and two small businesses sued to block the tariffs. Trump invoked Section 122 of the Trade Act of 1974 to impose them. Plaintiffs argue this authority addresses monetary emergencies, not routine trade deficits. The White House says the tariffs legally address balance-of-payments issues.