On the trail in New Hampshire

Former Utah Gov. Jon Huntsman kisses eight-week-old Grace Lesperance while campaigning at Mary's Bakery and Cafe in Henniker, N.H. Monday, Jan. 9, 2012.

Romney leads among GOP voters in N.H. — AP Photo/Elise Amendola

Former Massachusetts Gov. Mitt Romney, left, points as New Jersey Gov. Chris Christie claps at right during a campaign rally in Exeter, N.H., Sunday, Jan. 8, 2012.

Former House Speaker Newt Gingrich, right, answers a question as Rep. Ron Paul, R-Texas, listens during a Republican presidential candidate debate at the Capitol Center for the Arts in Concord, N.H., Sunday, Jan. 8, 2012.

Former Pennsylvania Sen. Rick Santorum, R-Pa., center left, greets people outside the Homestead Grocery and Deli Saturday, Jan. 7, 2012, during a campaign stop in Amherst, N.H.

Gingrich speaks during a campaign stop at the Plymouth Senior Center, Thursday, Jan. 5, 2012, in Plymouth, N.H.

Romney, accompanied by Sen. John McCain, R-Ariz., campaigns during a town hall style meeting in Manchester, N.H., Wednesday, Jan. 4, 2012.

Paul is swarmed by members of the media after visiting a restaurant in Manchester, N.H., Monday, Jan. 9, 2012.

Santorum speaks outside the Homestead Grocery and Deli, Saturday, Jan. 7, 2012, in Amherst, N.H.

Jon Huntsman

Jon Huntsman kisses five month-old Mallory Blais during the Salem-Windham Republican Labor Day picnic on September 5, 2011 in Salem, New Hampshire.

Mitt Romney

Former Massachusetts governor and republican candidate for president Mitt Romney and his wife Ann serve pancakes during a Labor Day pancake breakfast on September 5, 2011 in Manchester, New Hampshire.

Ron Paul

Rep. Ron Paul of Texas, breaks from campaigning for president to ride a bike in Concord, N.H.

Rick Sanotrum

Wearing his boots, Republican presidential candidate former Pennsylvania Sen. Rick Santorum watches his put during a campaign stop at the Carroll County GOP golf tournament, Oct. 10, 2011 in Center Ossipee, N.H.

Rick Santorum

Republican presidential candidate and Texas Governor Rick Perry speaks with diners at Harvey's Bakery and Coffee Shop on August 18, 2011 in Dover, New Hampshire.

Michele Bachmann

Republican presidential candidate Rep. Michele Bachmann is greeted by voters as she arrives for campaign events on Oct. 9, 2011, in Moultonboro, N.H.

Mitt Romney and Jon Huntsman

Republican presidential candidates, Former Ambassador to China Jon Huntsman and former Massachusetts governor Mitt Romney greet each other prior to marching in a Fourth of July parade in Amherst, New Hampshire.

Rick Perry

Republican presidential candidate, Texas Gov. Rick Perry, takes a bite of chili during a campaign stop a the Chili Festival on Oct. 1, 2011, in Manchester, N.H.

Ron Paul

Republican presidential candidate, Rep. Ron Paul, autographs a sign after speaking to students at the University of New Hampshire's Manchester campus, on Oct. 3, 2011, in Manchester, N.H.

Herman Cain

Republican presidential candidate, businessman Herman Cain addresses lawmakers at the statehouse in Concord, N.H., Oct. 12, 2011.

Michele Bachmann

Republican presidential candidate, Rep. Michele Bachmann, answers questions during a town meeting at New England College in Henniker, N.H., Oct. 10, 2011.

Rick Santorum

Former Sen. Rick Santorum speaks in the spin room with his wife Karen and son Daniel following the Republican presidential primary debate June 13, 2011 at Saint Anselm College in Manchester, New Hampshire.

Ron Paul

Ron Paul and Michele Bachmann supporters hold signs outside the venue for the Republican presidential primary debate June 13, 2011 at Saint Anselm College in Manchester, New Hampshire.

Newt Gingrich

Republican presidential candidate former House Speaker Newt Gingrich talks to his wife Callista, during a debate in a presidential debate at Dartmouth College in Hanover, N.H., Tuesday, Oct. 11, 2011.

Rick Santorum

Republican presidential candidate former Pennsylvania Sen. Rick Santorum talks to customers at The Old General Store during a campaign stop on Oct. 10, 2011 in Moultonboro, N.H.

Herman Cain

Entrepreneur Herman Cain attends the first 2012 Republican presidential candidates' debate in Manchester, New Hampshire on June 13, 2011.

Michelle Bachmann

Republican presidential candidate Rep. Michele Bachmann, pays for items she bought during a campaign stop at Zeb's General Store on Oct. 9, 2011, in North Conway, N.H.

Rick Perry

Republican presidential candidate, Texas Gov. Rick Perry speaks to local residents at the "We the People: A First in the Nation Freedom Forum" town hall event at the One Liberty Lane Conference Center on October 1, 2011 in Hampton, New Hampshire.

Mitt Romney

Republican presidential candidate former Massachusetts Gov. Mitt Romney asks the crowd to be seated as he receives a warm welcome during a campaign stop at Hopkinton Town Hall, in Hopkinton, N.H., on Oct. 10, 2011.

Jon Huntsman

Former Utah governor and Republican presidential canididate Jon Huntsman speaks during a town hall style meeting at the Kendal Retirement Community on October 11, 2011 in Hanover, N.H.