John Hickenlooper launches moderate campaign for 2020 presidential bid
Sen. Bernie Sanders held his first rally this weekend, as a second time presidential candidate. Meanwhile, a more moderate candidate entered the field. Caitlin Huey-Burns, CBSN political reporter, Ed O'Keefe, CBS News political correspondent, and Antjuan Seawright, a democratic strategist join CBSN's "Red & Blue" to discuss the large amount of 2020 contenders.