The rhetoric about the Panama Canal is incredibly insulting and dangerous. Why does this man insist on mistreating his allies, often times worse than his enemies? And then we have the chorus of idiots that parrot him "Yeah, what a great idea". Yes of course he wants something (he's too much of a wuss to actually deploy boots), but as leader of the worlds preeminent superpower....throwing stuff at the wall as half baked negotiating ploys is reckless.
Panama has been a team player the last 35 years; its governments are historically very friendly towards the US. Its current government is center right and aligned with the Trump friendly regimes in LatAm. Trump's statement means the Panamanian president will have to defend the canal, and the leftist governments of Lat Am will rush to his side. Panama is one of those countries that runs a huge trade deficit with the US.