So much for the brilliant negotiator... what trump lacked in experience, temperament, ability and competence was all going to made up by his ability to make great deals. What those deals are is still completely unclear but if his negotiation tactics with China are any indication, we better all learn to speak Mexican. Trump broke with long precedent by speaking with the president of Taiwan breaking The One China policy set out by Jimmy Carter. This was seen as a shot across the bow, Trump's method of showing China whose boss.
In retaliation, Xi Jinping refused to take Trump's call and after three weeks in office, the great negotiator came back and said he'd stay with the One China policy which only showed how weak our president is.