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It's 'up to the U.S.' to resolve the trade war with China

As the markets slide on worries over trade, Ari Wald of Oppenheimer & Co. says the market environment remains "positive." Kristina Hooper, Chief Global Market Strategist at Invesco, says China will not capitulate in the trade fight so it's up to the U.S. to decide the next steps. They spoke with Yahoo Finance's Alexis Christoforous and Brian Sozzi.