The most important sentence in  this article is the last one, regarding NAFTA.
Trump "would need Congress to approve rolling back its provisions, such as by putting tariffs on Canadian and Mexican goods that are currently exempted."
Trump can pull U.S. out of the pact, but that is just symbolism unless Congress approves the proposed changes.
Mr. Blowhard was left looking pretty stupid when his "terrific" health care plan went down in flames.  The same will happen here. Both houses are non-protectionist free traders.
Trump said of his health care defeat: "Gee, who would have thought health care is so complicated?"
Six months from now, he is going to be saying something equally vacuous about NAFTA.