Sanders enjoyed a notable seven-point jump in support since last month, while Biden’s dipped two percentage points. Both candidates are far ahead of the rest of the field. The nearest, Massachusetts Sen. Elizabeth Warren, draws 14%.
The fresh numbers come as the party primary election season is soon to begin, with Iowa’s first-in-the-nation caucuses scheduled for Feb. 3, and the New Hampshire primary set for Feb. 11. Biden leads in surveys of Iowa voters, while Sanders is narrowly ahead in New Hampshire, according to averages of polls from RealClearPolitics.