Progressive Sen. Bernie Sanders (I-Vt.) has jumped out to a double-digit lead over the rest of the 2020 Democratic primary field, appearing to cement his position as the front-runner to win the party's presidential nomination, according to a new ABC News-Washington Post poll. 

The survey found that 32 percent of Democrats and Democratic-leaning independents favor Sanders, an 8-point increase from a similar poll conducted last month. Meanwhile, former Vice President Joe Biden's support dropped 11 points to 17 percent, giving Sanders a 15-point lead against his nearest competitor. The 15-point margin is nearly double Biden's biggest lead in the ABC News-Washington Post surveys during the 2020 cycle. 

Former New York City Mayor Mike Bloomberg, who will appear in his first 2020 presidential debate in Nevada on Wednesday night, trails Biden in third with 14 percent support. The figure represents a 6-point climb since January. 

The rest of the field had little movement over the past month. Sen. Elizabeth Warren's (D-Mass.) support stayed stagnant at 11 percent, while former South Bend, Ind., Mayor Pete Buttigieg experienced a 2-point jump to 7 percent support. Buttigieg appears to be leading the field in the delegate count, but he has struggled to form a diverse coalition of support outside of predominantly white early voting states like Iowa and New Hampshire. 

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