Joe Biden leads as the top choice of likely participants in the first-in-the-nation Iowa Democratic caucuses, but his advantage there is smaller than the one he has held in recent national polling, even as just five candidates out of a field of 23 crack 5% support.
A new CNN/Des Moines Register/Mediacom poll conducted by Selzer and Co., finds Biden leads among both those who plan to participate in the caucuses the traditional, in-person way, or via a new process for caucusing virtually. CONT.
Jennifer Agiesta, CNN