Wall St. drops on jitters over Trump's travel curbs

The promise of tax cuts and simpler regulations had lured investors into equity markets since Trump's election in November, but some are worried about the potential risk of his protectionist policies. "A new week of trading is getting off on a sour note, as key macro news, Fed action, international and domestic backlash over Trump's immigration stand are putting investors on the defense," Peter Cardillo, chief market economist at First Standard Financial, wrote in a note. The S&P 500 was dow