CNN CNN Newsroom With Fredricka Whitfield December 29, 2019 18:46:00
Sanders team is right -- >> we believe in grass roots organizing. >> reporter: -- this is is where the iowa caucus will be won. >> i'm volunteering with the bernie sanders campaign. >> reporter: on sidewalks in the cold, with dedicated volumentev, one of the foot soldiers in the 2020 version of the sanders revolution. >> he's for the people, by the people. >> reporter: sanders is back in iowa this week with a revamped strategy on full display while he's still drawing big crowds at raucous rallies. >> we have a number of challenges. >> reporter: his campaign has a targeted focus highlighted by ...
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