Four Democrats Move Into Top Tier

A new CBS News poll across the early primary and caucus states finds Joe Biden leading the Democratic field with 25%, followed by Elizabeth Warren at 20%, Kamala Harris at 16% and Bernie Sanders at 15%.

“If we consider a 15% threshold as the minimum support needed to win convention delegates, then across the early states, four candidates would meet that benchmark: Biden, Warren, Harris and Sanders.”

However, the contest “is tighter now among estimated delegates across early states, the true measure of the contest — delegates to the convention. By this measure, Warren is much closer to Biden due to stronger showings especially in very liberal areas.”