The chart above is from the latest (post-debate) Morning Consult Poll -- done between September 12th and 15th of a national sample of 7,487 registered voters who say they will vote in a Democratic primary/caucus. The margin of error is only 1 point.
Elizabeth Warren continues her march toward the top. She gained 2 points in this post-debate poll -- the only candidate to exceed the margin of error of 1 point. Both Biden and Sanders lost a point since last week's poll.
