Trump says he's not backing down on tariffs, calls them 'medicine' as markets reel

WEST PALM BEACH, Fla. — President Donald Trump said Sunday that he won't back down on his sweeping tariffs on imports from most of the world unless countries even out their trade with the U.S., digging in on his plans to implement the taxes that have sent financial markets reeling, raised fears of a recession and upended the global trading system.