Sanders and Biden are neck-and-neck in new Iowa poll.
Bernie Sanders was at 26 percent, Joe Biden at 25, Pete Buttigieg at 22 and Elizabeth Warren at 15 in a CBS News poll.
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Sanders and Biden are neck-and-neck in new Iowa poll.
Bernie Sanders was at 26 percent, Joe Biden at 25, Pete Buttigieg at 22 and Elizabeth Warren at 15 in a CBS News poll.