Until and unless the Senate ratifies it, Trump can waffle and negotiate as much as he wants.   And he, like Obama, doesn't have to ever submit it to the Senate.

Just like NAFTA, he can threaten and bluster and reverse himself and keep everyone guessing.

Too bad that doesn't work when someone is aiming nuclear armed missiles at your country, though.

Assassination is starting to look a lot more reasonable in Kim Jong Un's case.

Obama had Osama bin Laden assassinated and he only caused a few thousand deaths.  

Kim is too dangerous to live.