CNN CNN Newsroom With Fredricka Whitfield December 29, 2019 18:47:00
May not traditionally been part ofrt process, but inspired by the message buzz of a personal experience. it's not the first time a campaign has made turning out new caucus goers a key part of its iowa strategy. it worked well for barack obama in 2008, but the sanders campaign says it's 2020 model is is a political leap of faith. >> is it ament gamble? >> if we're not willing to take risks, it is a gamble. but look, the senator has always been somebody willing to gamble and do what was right. you show up that day and register as a democrat. >> reporter: caucus participation means spending which...