A stunning new poll has Sen. Bernie SandersBernard (Bernie) SandersSanders to campaign for Florida Dem governor candidate Lewandowski says Bloomberg would be 'very competitive' against Trump in 2020 One Vermont Republican wins statewide nomination in six races MORE (I-Vt.) beating presumptive Democratic presidential front-runner Hillary ClintonHillary Diane Rodham ClintonGillibrand urges opposition to Kavanaugh: Fight for abortion rights 'is now or never' Bannon announces pro-Trump movie, operation team ahead of midterms: report Fox News host hits Giuliani: Dossier isn't why Mueller probe was started MORE in New Hampshire.

Sanders has eclipsed Clinton by a 44 to 37 percent margin, according to a new Franklin Pierce University/Boston Herald poll that was first reported by the Boston newspaper Tuesday evening.

The previous FPU/Herald poll taken in March had Sanders trailing Clinton 44 to 8.

Today's poll is the first to show Sanders, whose liberal policies are popular with the Democratic base, ahead of Clinton in New Hampshire.

And it comes as reports surfaced that Clinton will turn over her private email server that she used while leading the State Department to Justice Department officials.

Meanwhile, Vice President Joe BidenJoseph (Joe) Robinette BidenBiden to Trump: If you think revoking Brennan's clearance will silence him, 'you just don't know the man' The Hill's 12:30 Report Lewandowski says Bloomberg would be 'very competitive' against Trump in 2020 MORE garnered 9 percent, with the other remaining candidates hovering at around 1 percent, according to the poll.

Pollsters telephoned 442 likely Democratic voters in New Hampshire between Aug. 7 and Aug. 10. The poll has a margin of error of plus or minus 4.7 percentage points.

Clinton maintains a dominant lead in other polls. During her failed bid for presidency in 2008, she surged to narrowly win the New Hampshire primary after losing to then-Sen. Barack ObamaBarack Hussein ObamaWhat happened to the Tea Party? Democrats should fully embrace their union roots Falwell Jr.: Sessions and Rosenstein ‘deceived’ Trump into appointing them and should ‘rot’ in jail MORE in the Iowa caucuses.