President Donald Trump has launched a fresh attack on Federal Reserve chairman Jerome Powell after the central bank opted to leave interest rates unchanged, prompting an immediate backlash from the White House. Analysts said investors remain cautious about the path of interest rates. The Federal Reserve said its decision reflected the continued strength of the US economy. Mr Powell noted that recent data had exceeded expectations, saying “the economy has once again surprised us with its strength”. Two members of the Federal Reserve dissented, with Stephen Miran and Christopher Waller both voting for a rate cut.