Stock market today: Dow, S&P 500, Nasdaq fall as Wall Street digests Warsh as Trump's Fed pick

US stocks fell on Friday as President Trump said he would nominate Kevin Warsh to lead the Federal Reserve, against a background of a rising dollar and tumbling gold. The S&P 500 (^GSPC) slid 0.2%, while the tech-heavy Nasdaq Composite (^IXIC) fell 0.3%, pointing to another down session for tech stocks. The Dow Jones Industrial Average (^DJI) dipped below the flat line. Markets are calculating the potential impact after Trump said he has chosen frontrunner Warsh as the US central bank's next chair, in a ...