Anyway, I have a hunch that Rubio has to try to win FL to save his political career at this point. He's taken so many Ls the past few weeks that he doesn't seem like a viable Senator candidate anymore if he turns around and decides to run for his Senate seat again after all or runs for Governor. He needs to at least try to save his career by beating Trump, though that's not going to happen.
Cruz is playing a dangerous game. If he knocks Rubio out by placing him in third in FL, so what? Trump winning FL and OH ends the game for Cruz, unless of course Cruz is actually trying to set himself up for being the 2020 frontrunner more than anything else at this point.