Wall St. ends lower; Merck, Trump tax talk weigh


Wall Street pulled back from record-high territory on Monday, weighed down by a drop in Merck shares and a report that U.S. lawmakers are discussing a gradual phase-in of much-anticipated corporate tax cuts. Traders work on the floor of the American Stock Exchange at the New York Stock Exchange in New York City, New York, U.S., October 27, 2017.



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