Poll shows Joe Biden and Elizabeth Warren gaining in the Democratic field

WASHINGTON – An NBC/Wall Street Journal poll released Tuesday shows former Vice President Joe Biden and Sen. Elizabeth Warren, D-Mass., continuing to gain over the rest of the Democratic field.

Biden remains the highest-polling candidate, coming in at 31%, a 5-percentage-point gain from July. Warren jumped by 6 percentage points, from 19% to 25%.

Sen. Bernie Sanders, I-Vt., inched up from 13% to 14%, and South Bend, Indiana, Mayor Pete Buttigieg remained steady at 7%.

Sen. Kamala Harris, D-Calif., fell from a high of 13% in July to 5%.

Entrepreneur Andrew Yang moved from 2% to 4%, putting him in sixth place, behind Harris.

Warren registers the highest levels of energy among the respondents. Thirty-five percent of respondents say they would be "enthusiastic" to support Warren; 25% and 23% say they're enthusiastic about Sanders and Biden, respectively.

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Among Democrats who identify as "moderate or conservative," Biden leads by a commanding margin, supported by 42% of those surveyed.

Warren leads the field among Democrats who identify as "liberal," at 36%.

There's room for movement in the field: Only 9% of respondents say they have their minds made up.

The poll was conducted Sept. 13-16 of 506 Democratic primary voters, with a margin of error of plus or minus 4.4 percentage points.

The next Democratic debate is scheduled for Oct. 15 at Otterbein University, outside Columbus, Ohio.

Eleven candidates have qualified for the debate – all 10 who took part in September's debate and businessman Tom Steyer.

This article originally appeared on USA TODAY: Joe Biden and Elizabeth Warren make gains in new 2020 election poll