Sanders leads with Warren close behind in new Iowa poll. [Image source/CBS News You Tube video]
Bernie Sanders ramps up presence in Seattle. [Image source/King 5 You Tube video]
Sanders leads with Warren close behind in new Iowa poll. [Image source/CBS News You Tube video]
Bernie Sanders ramps up presence in Seattle. [Image source/King 5 You Tube video]
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Photogallery - President 2020: Bernie Sanders inches ahead in the Democratic Party race