President Joe Biden’s top trade negotiator spoke for the first time with her Chinese counterpart by phone on Wednesday. It’s a sign that Washington and Beijing may be ready to pick trade talks back up, even as relations between the two remain tense.President Joe Biden’s top trade negotiator spoke for the first time with her Chinese counterpart by phone on Wednesday. It’s a sign that Washington and Beijing may be ready to pick trade talks back up, even as relations between the two remain tense.