What an idiot. Like, he does realize both Mexico and Canada would have been fine sitting down and renegotiating NAFTA, right? All this dick waving will do is put off any countries that wan't to sign trade agreements in the future. What's the point if the president can threaten to shut it down to get what they want?
Not to mention, if you're going to threaten to pull out of a big trade deal, but have no intention to actually do it, maybe you should do that in a meeting behind closed doors. All bringing it up to the public will do is freak people out. But that wouldn't look good to his supporters, so you can't do that. NOOOOOOOOOOO, why act like a god damn president if you can brag about all the good deals you do.