Former Vice President Joe Biden Joe BidenOmar fires back at Trump over rally remarks: 'This is my country' Trump mocks Biden appearance, mask use ahead of first debate Trump attacks Omar for criticizing US: 'How did you do where you came from?' MORE (D) edges Sen. Bernie Sanders Bernie SandersButtigieg stands in as Pence for Harris's debate practice Bernie Sanders warns of 'nightmare scenario' if Trump refuses election results Harris joins women's voter mobilization event also featuring Pelosi, Gloria Steinem, Jane Fonda MORE (I-Vt.) in a Suffolk University poll asking New Hampshire Democrats to pick their favorite of seven possible candidates.

When Sen. Elizabeth Warren Elizabeth WarrenHarris joins women's voter mobilization event also featuring Pelosi, Gloria Steinem, Jane Fonda Judd Gregg: The Kamala threat — the Californiaization of America GOP set to release controversial Biden report MORE (D), who represents neighboring Massachusetts, is added to the list, she comes out on top with 26 percent, compared to 20 percent for Biden and 13 percent for Sanders.

Without Warren, Biden gets 30 percent support followed by Sanders with 25 percent.

The poll, conducted April 26-30, surveyed 295 likely Democratic primary voters. It also asked respondents about Sens. Kirsten Gillibrand Kirsten GillibrandSunday shows preview: Justice Ginsburg dies, sparking partisan battle over vacancy before election Suburban moms are going to decide the 2020 election Jon Stewart urges Congress to help veterans exposed to burn pits MORE (D-N.Y.), Cory Booker Cory Anthony BookerBipartisan praise pours in after Ginsburg's death DHS opens probe into allegations at Georgia ICE facility Democratic lawmakers call for an investigation into allegations of medical neglect at Georgia ICE facility MORE (D-N.J.) and Kamala Harris Kamala HarrisButtigieg stands in as Pence for Harris's debate practice First presidential debate to cover coronavirus, Supreme Court Harris joins women's voter mobilization event also featuring Pelosi, Gloria Steinem, Jane Fonda MORE (D-Calif.), former Massachusetts Gov. Deval Patrick (D) and former Virginia Gov. Terry McAuliffe (D).

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The poll has a margin of error of 5.7 percentage points.

New Hampshire hosts the first primary in the nation each presidential election year.

None of the candidates on the list has formally said they are running for president. Biden recently indicated he would determine his plans by the end of 2018.