The U.S. Supreme Court will hear arguments Wednesday over President Donald Trump’s sweeping tariffs, putting a tool at the center of his economic and foreign policy agendas squarely before the high co...

Donald Trump’s signature economic initiative appears to be on the ropes following oral argument at the Supreme Court on Wednesday.

At a long and lively oral argument Wednesday, the nine justices—and three lawyers—debated whether Trump overstepped his authority when he imposed sweeping global tariffs, ostensibly to tackle national...