According to Morning Consult, the independent Vermont senator and democratic socialist leads at 25 percent. Behind him is Biden on 22 percent.

The pollster said this is the first time Sanders has surpassed Biden, a longtime frontrunner in the 2020 race, in its national polling.

In third place is late-entrant to the race Mike Bloomberg, the financial data billionaire and former New York City mayor, at 17 percent.

Tied for fourth place is former South Bend, Indiana, Mayor Pete Buttigieg and Massachusetts Senator Elizabeth Warren, both at 11 percent.

Bloomberg and Buttigieg are the beneficiaries of Biden’s decline in popularity, Morning Consult said.

Buttigieg is also benefiting from his narrow victory in the Iowa caucuses. He also took some national support from Minnesota Senator Amy Klobuchar, another moderate in the race.

The Morning Consult polling data is based on 36,180 online surveys with registered voters, including 15,346 surveys with Democratic primary voters, conducted between February 4 to 9. There is a margin of error of plus or minus one point.

Sanders came second in Iowa on the delegate count but his campaign points to the state’s popular vote, which he won by a small margin.

The veteran senator looks set to triumph in Tuesday’s New Hampshire primary.

The final 7 News/Emerson College tracking poll on the eve of the New Hampshire primary had Sanders leading at 30 percent over Buttigieg in second at 23 percent, Klobuchar in third at 14 percent, then Warren at 11 percent and Biden on 10.

A separate poll released Monday showed Sanders taking the lead nationally over Biden after the latter’s fourth-place finish in Iowa and expected poor showing in New Hampshire.

The Quinnipiac University Poll had Sanders out in front among registered Democratic and Democratic-leaning independents at 25 percent.

Next was Biden at 17 percent, Bloomberg at 15 percent, Warren at 14 percent, Buttigieg at 10 percent, and Klobuchar at 4 percent.

“Biden scrambles to bounce back in frigid New Hampshire after an icy slide to 17 percent, his lowest national number,” said Quinnipiac University Poll Analyst Tim Malloy.

“Clearly Biden’s fourth-place finish in Iowa has hurt the perception of what was his biggest strength—electability.”

In early New Hampshire voting, Klobuchar took the lead among three small townships in the state that voted just after midnight. Bloomberg, who was not on the ballot, also secured support as a write-in.