Someone remind me: isn't there a term for people with this sort of fixation? Joe Scarborough just can't stop looking at and talking about Marco Rubio's footwear, ever since a photo recently appeared of Rubio sporting a pair of boots. On today's Morning Joe, Scarborough repeatedly circled back to the subject, managing to work it into a number of conversations. For example, when Mika Brzezinski cited a report that Rubio has shifted his message from optimism to "doom," Scarborough jumped in: "what? Did he break a heel?" View the video here.