Will Marco Rubio top Ted Cruz in Nevada?
Ted Cruz has fired his communications director for posting a video with false information about Marco Rubio. Cruz came in third place in the South Carolina primary last week, just behind Rubio. With more on Rubio and Cruz's chances against front-runner Donald Trump in today's Nevada caucus, CBS News' Steve Chaggaris and Politico's Eli Stokols join CBSN.