Super Tuesday is the biggest primary day of the year, with 16 states and one U.S. territory holding presidential nominating contests today. There are 865 Republican delegates — accounting for 36% of the total delegates in the entire race — up for grabs today. Fmr. Chief Strategist for the Bush-Cheney '04 Campaign & Senior MSNBC Political Analyst Matthew Dowd joins MSNBC's Chris Jansing to discuss potential results.
