CBS News conducted a poll in 18 states that will shape the Democratic presidential race through Super Tuesday.
Joe Biden is the first-choice among 31% of Democratic primary voters, compared to Elizabeth Warren at 17%, Bernie Sanders at 16%, Kamala Harris at 10%, Pete Buttigieg at 8% and Beto O’Rourke at 5%.
Biden also leads in Iowa, New Hampshire and South Carolina, specifically.


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