Former Arkansas Gov. Mike Huckabee (R) just barely leads the field of potential Republican 2016 candidates in Iowa, according to a new poll.

The NBC News-Marist poll released Sunday found Huckabee with 17 percent support among those surveyed followed by former Florida Gov. Jeb Bush with 16 percent support and Wisconsin Gov. Scott Walker with 15 percent support. Another 14 percent said they were undecided and the remaining eight names the poll listed each failed to get double digit support. New Jersey Gov. Chris Christie got 9 percent support while Sen. Rand Paul (R-KY) got 7 percent and Sen. Marco Rubio (R-FL) got 6 percent, tied with Dr. Ben Carson.

Three hundred and two adults were surveyed for this question. The margin of error was plus or minus 5.5 percentage points.

On the Democratic side, former Secretary of State Hillary Clinton leads the rest of the potential field with 68 percent support. Vice President Joe Biden came in second with 12 percent while Sen. Bernie Sanders (I-VT) got 7 percent, and former Maryland Gov. Martin O’Malley got less than 1 percent support. Former Sen. Jim Webb (D-VA) got 1 percent.

Three hundred and twenty one Iowans were surveyed for this question and the margin of error was plus or minus 5.5 percentage points.

Biden recently delivered a speech at Drake University in Iowa where he encouraged Democratic candidates to run on the Obama-Biden record in the next election cycle.

“Run —yes, run— on what we have done,” Biden said.

Biden also said he would decide on whether he would be one of those candidates by the end of the summer.

“That’s a family, personal decision that I’m going to make sometime at the end of the summer,” Biden said.

The poll was conducted from Feb. 3 to Feb. 10.