Anyway, Trump did a no-no. What's the deal? Two interpretations.
1) Occam's razor says Trump is a venal idiot. Somebody called to congratulate him, so of course he took the call. It took him days to disavow the endorsement from David Duke. Why? Trump is all about reciprocity. Your worth as a person is determined entirely by whether or not you like him. So, the President of Taiwan likes Trump? Taiwan must be awesome! If that plays into his China-bashing, then so be it. Strategy? What's that?
2) Trump's approach to international relations depends on his capacity to make and carry out dangerously self-destructive threats. He will threaten anything from trade wars to actual wars, any of which would be harmful to the US to carry out. How could he make those threats credible, when the US would suffer from the implementation of those threats? Well, there's the problem, and it was the theme of the "Political science and craziness" series I did back in August (links below).
Here's the gist. Suppose you and I are in an enclosed space, and I threaten to detonate a grenade if you don't give me $20. If you think I am sane, you won't do it because you will know that I won't think that my life is worth $20, and blowing up the grenade would take me with you. On the other hand, if you think I am crazy, I might do it, so you might give me the money. Key book: The Strategy of Conflict, by Thomas Schelling.
The point is that there is a strategic benefit to being seen as crazy and willing to do stupidly self-destructive things. How can you create that impression? By doing stupidly self-destructive things, at least at a small scale.
Like, maybe, taking a phone call from the President of Taiwan, sticking a finger in the eye of China in a way that we haven't done in decades for no other obvious reason.
Occam's razor still says Trump is a venal idiot. But, I wrote that "Political science and craziness" series back in August. Interpretation 2 is a bit (or more) Rube Goldberg, but cannot be discounted completely. If you have to bet, though, always bet on the Occam's razor interpretation. Screw gillette. Occam is still the best a man can get.
Links to "Political Science and Craziness
Part I
Part II
Part III
Part IV
Part V