A Supreme Court decision on Friday striking down President Trump’s sweeping global tariffs dealt a major blow to his economic agenda and brought new uncertainty to global markets struggling to adapt t...

President Donald Trump lashed out at countries with a threat of much higher tariffs if they try to take advantage after the Supreme Court struck down his sweeping tariffs.

The Supreme Court in a 6-3 ruling on Friday voided most of the tariffs Trump imposed last year, finding that the emergency law he relied on did not allow the imposition of tariffs.