Iowa Poll: First Poll of Likely Caucusgoers Finds Biden, Sanders, O’Rourke Atop the Field
IOWA -- Former Vice President Joe Biden holds the pole position in the first CNN/Des Moines Register/Mediacom poll among likely 2020 Democratic caucusgoers, with Vermont Sen. Bernie Sanders and Texas Rep. Beto O'Rourke joining him as the only possible candidates in the field with double-digit support.