Trump seems to consider that every deal has a winner and a loser, and that he should always be the winner. If that means cheating contractors who work for you, stiffing your financial backers, launching frivolous and vexatious lawsuits, using a position of power for personal enrichment or lying so much that no one really knows what you mean, so be it. The concept that trade should benefit both partners is foreign to him in government as it is in business.

It's going to be a long and draining set of negotiations over NAFTA.