Consumer staples stocks help Wall Street pare some losses

U.S. stocks came off session lows on Tuesday as gains in consumer staples stocks countered the decline in banks and healthcare companies. Biotechnology and pharmaceutical stocks came under pressure after President-elect Donald Trump told the Washington Post that he would target drug companies over pricing and that he was ready to unveil a plan to replace Obamacare. The Nasdaq biotech index slipped nearly 2 percent.