Even the candidates are beginning to lose track of how many Republican debates we’ve had this season, as Mitt Romney admitted tonight in Las Vegas, “This is either the eighth or ninth debate we’ve had.” Sheesh. At tonight’s match-up, Michele Bachmann was the first to make that obvious Vegas joke, Herman Cain continues to struggle to get folks to understand his 9-9-9 tax plan, and everyone kept interrupting Romney to the point the debate almost resembled one of those Real Housewives reunions with Anderson Cooper playing the Andy Cohen role, unsuccessfully attempting to bring the conversation back to Earth. See all this and more in our speedy video roundup.