Republican presidential candidates, (L-R) former Utah Gov. Jon Huntsman, former Massachusetts Gov. Mitt Romney, U.S. Rep. Ron Paul (R-TX), former Speaker of the House Newt Gingrich, and Texas Gov. Rick Perry walk on the stage as they are greeted by moderator David Gregory (2nd L) prior to the NBC News Facebook Debate on 'Meet the Press' January 8, 2012 at the Capitol Center for the Arts in Concord, New Hampshire. The candidates participated in the last debate before the primary election on Tuesday.