Andrew Sullivan doesn't think we need to dig too deeply into President Trump's dealings to understand why he behaves the way he does:
The lies come and go. But his deeper convictions really are in plain sight.
And they are, at root, the same as those of the strongmen he associates with and most admires. The post-1945 attempt to organize the world around collective security, free trade, open societies, non-zero-sum diplomacy, and multicultural democracies is therefore close to unintelligible to him. Why on earth, in his mind, would a victorious power after a world war be … generous to its defeated foes? When you win, you don’t hold out a hand in enlightened self-interest. You gloat and stomp. In Trump’s zero-sum brain — “we should have kept the oil!” — it makes no sense. It has to be a con. And so today’s international order strikes Trump, and always has, as a massive, historic error on the part of the United States.
He always hated it, and he never understood it. That kind of complex, interdependent world requires virtues he doesn’t have and skills he doesn’t possess. He wants a world he intuitively understands: of individual nations, in which the most powerful are free to bully the others. He wants an end to transnational migration, especially from south to north. It unnerves him. He believes that warfare should be engaged not to defend the collective peace as a last resort but to plunder and occupy and threaten. He sees no moral difference between free and authoritarian societies, just a difference of “strength,” in which free societies, in his mind, are the weaker ones. He sees nations as ethno-states, exercising hard power, rather than liberal societies, governed by international codes of conduct. He believes in diplomacy as the meeting of strongmen in secret, doing deals, in alpha displays of strength — not endless bullshit sessions at multilateral summits. He’s the kind of person who thinks that the mafia boss at the back table is the coolest guy in the room.
All of this has been clear from the start. So while the Mueller probe may continue to uncover massive criminal activity all around Trump, it may never find true collusion with Russia. But the probe is still necessary, because (a) there really is criminal behavior there and (b) it can preserve the West that much longer.
But we simply must take the House back this November, and send Trump packing in 2020. Otherwise the world will become a much worse place very soon.