Buttigieg on Biden attacks: Obama owed ‘bulk of the credit’ for administration success

Sen. Bernie Sanders and Pete Buttigieg are in a virtual tie in the Iowa caucus results, which have not yet been fully reported. The former South Bend, Ind., mayor sat down with MSNBC’s Stephanie Ruhle to discuss Iowa, Joe Biden’s criticism, and what it means to be an openly gay candidate running for president.