Democrats Poll September Biden, Warren, Sanders

The latest NBC News/Wall Street Journal poll finds Biden in first place, with the support of 31 percent of Democratic primary voters. That’s a five-point increase from his standing in July. But Warren is approaching the front runner's heels, with 25 percent of voters’ support. That figure represents a six-point increase from her standing in the previous survey.

Both candidates are trailed by Sen. Bernie Sanders of Vermont, who earns 14 percent of voters’ support after earning 13 percent in July; South Bend Mayor Pete Buttigieg, who is at 7 percent now and was at the same mark in July; and Sen. Kamala Harris, who has fallen by eight points to 5 percent after notching 13 percent in July