Top trade negotiators from the US and China are meeting for the first time in almost three months on Tuesday to try and do a deal, but expectations are low. Still, while there's been an apparent lull since the two sides last sat down and talked, there's been plenty going on under the surface. There's now fresh evidence to show just how much the trade war is hurting both China and the US. Here are three sore points between them that are adding yet another layer of complexity to the negotiations.
