On morning shows, Marco Rubio projects optimism

With the Florida Primary four days away, Marco Rubio has reasons to project optimism. His debate performance Thursday night was a bounce-back showing. Some polls are showing him closing the gap with Donald Trump. On a host of morning shows Friday, Rubio was on message. That message was he’s the one Republican who can beat Trump and unify the GOP. On CBS “This Morning,” Rubio noted that he did well in the “policy debate” that he’s wanted for a while. “It was…