I like your comment, but would add that he can bully Mexico, but not Canada.  The reason is that we can implement retaliatory tariffs on US imports and then make those items here.  Before the 'free trade era' we did just that.  And what we can't make, we can get from other countries that will treat us fairly.  Mexico, according to the Economist, will likely vote in a socialist government, and, the following is pure speculation on my part, say, nationalize the huge investment in auto plants made by America.  Then they will trade with Venezuela and Cuba.