Bernie Sanders overtook Joe Biden in a recently released survey of voters in the key primary state of New Hampshire.

The Gravis Marketing poll released Tuesday showed the 77-year-old independent Vermont senator leading the pack of Democratic candidates by six points, with 21% support among Democratic primary goers. Biden, who has consistently polled above Sanders in the state, brought in 15% support.

The 76-year-old former vice president was followed by Sen. Elizabeth Warren of Massachusetts with 12%, South Bend, Indiana, Mayor Pete Buttigieg at 8%, Sen. Kamala Harris of California at 7%, Rep. Tulsi Gabbard of Hawaii at 5%, and tech entrepreneur Andrew Yang and businessman Tom Steyer both garnering 4% support.

“It is important to note that Sen. Sanders won the New Hampshire Democratic Primary in 2016,” president of Gravis Marketing Doug Kaplan said in a statement. “However, it is unlikely that Sen. Sanders will have a repeat of his 2016 performance in the state due to the number of candidates in the race this time.”

In theoretical match-ups between President Trump and the candidates, Biden bested Trump 53% to 40%, Sanders beat the president 51% to 41%, and Warren leads Trump 49% to 44%.

The survey was conducted between Aug. 2 and Aug. 6 and has a 6.2% margin of error.

A RealClearPolitics national average of polls shows Biden leading the group of candidates with 30.8% support. Warren has 18% of the national share and Sanders is bringing in 16.8%.