WASHINGTON—U.S. trade officials are looking to knock down speculation of a split on China policy between President Trump and his lead trade negotiator, Robert Lighthizer, following a testy exchange between the two in the Oval Office Friday.

The incident occurred in front of reporters Friday afternoon, as the president and cabinet officials met with China’s top trade envoy, Vice Premier Liu He, to announce that talks aimed at settling the U.S.-China trade dispute were making progress and would be extended through the weekend.

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