The Boston Herald-Franklin Pierce University survey, released on Monday, indicated a three-way tie for the top spot in New Hampshire — with Sen. Elizabeth Warren at 25 percent support, former Vice President Joe Biden at 24 percent, and Sen. Bernie Sanders of Vermont at 22 percent.

But, if Obama hypothetically jumped into the race, the poll suggested she would grab 26 percent support of likely Democratic primary voters in the Granite State, with Warren and Biden at 20 percent and Sanders at 15 percent.

The former first lady has resisted a flood of calls for her to declare her candidacy.