US stocks and dollar slump again as Trump attacks Fed chief / US stocks and dollar plunge as Trump attacks Fed chair Powell / US stocks and dollar sink as Trump renews attacks on Fed chair Powell / US stocks and dollar tumble as Trump renews attacks on Fed Chair Powell / US stocks soar after Trump tariff reversal, oil prices jump / US Stocks to See Short-Term Relief Rally: 3-Minute MLIV / US stocks drop as traders weigh risks of wider war in Middle East