Former Vice President Joe Biden has extended his lead over progressive rivals Sens. Elizabeth Warren (D-Mass.) and Bernie Sanders (I-Vt.) in the latest Hill-HarrisX poll released on Monday.
The poll of likely Democratic and independent voters found that 31 percent support Biden for president, a 4-point increase from the last time the poll was conducted in late August.
Sanders came in second with 16 percent, while Warren followed in third place with 14 percent.
Though still within the margin of error, this uptick in support for Biden is a positive for a campaign that is trying to hold off Warren.
A Des Moines Register/CNN/Mediacon poll released Saturday showed Warren overtaking Biden for the first time in the caucus state. Warren won 22 percent support in the poll, compared to 20 percent for Biden.
In the Hill/HarrisX poll, South Bend, Ind., Mayor Pete Buttigieg tied Sen. Kamala Harris (D-Calif.) for fourth place, with each winning 5 percent.
Former Texas congressman Beto O’Rourke (D) followed with 4 percent.
Former entrepreneur Andrew Yang dropped back to 2 percent after previously climbing to 5 percent.
The only other candidates to poll at least 2 percent or higher were Sen. Cory Booker (D-N.J.), Amy Klobuchar (D-Minn.), and former Housing and Urban Development Secretary Julián Castro.
HarrisX researchers surveyed 440 Democratic and independent voters between Sept. 20 and Sept. 21. The margin of error for this poll is plus or minus 4.7 percentage points.
The Democratic field narrowed last week after New York City Mayor Bill de Blasio dropped out of the 2020 presidential race averaging in several national polls at less than 1 percent.
De Blasio, who first launched his bid in May, announced the news on MSNBC’s “Morning Joe,” and vowed to continue his work as mayor of New York City.
“It’s clearly not my time, so I’m going to end my presidential campaign, continue my work as mayor of New York City, and I’m going to keep speaking up for working people,” he said at the time.