trump is:

1. selfish, he would put his own interest above his nation

2. pacifist, I know I know, but he hate wars more than any US presidents, because for him, war is a waste of money. He would only support war if he think it will get him elected again and even that as the last resort.

3. a bully, he would bully weaker nations but when stronger nation push back hard, he would back down unless it threaten his second presidency

4. economic idiot, he knows nothing about economy or trade or finance. This point is actually the one that do the harm the most to his country and the world

5. a transactional, every thing is up for negotiation as long as the price is right, including the so called "core values" of americans

6. untrustworthy, you can't trust he will keep the deal. He will ready to throw people under the bus if it benefit him, after all he is selfish.

How should China deal with him, is more complicated, it depend on China's priority.