Six Republican presidential candidates — (from left) former Utah Gov. Jon Huntsman, former Pennsylvania Sen. Rick Santorum, former Massachusetts Gov. Mitt Romney, Texas Rep. Ron Paul, former House Speaker Newt Gingrich and Texas Gov. Rick Perry — listen to a question from David Gregory, moderator of NBC's "Meet the Press," during a GOP presidential candidate debate at the Capitol Center for the Arts in Concord, N.H., on Sunday, Jan. 8, 2012. (AP Photo/Charles Krupa)