Gerald Herbert / AP
Republican presidential candidate, former Massachusetts Gov. Mitt Romney speaks at a campaign rally at American Posts in Toledo, Ohio, Wednesday, Feb. 29, 2012. (AP Photo/Gerald Herbert)
Gail Gitcho of the Romney campaign explains whether the presidential candidate can now close the deal with the Republican base, gaining their support as well as the nomination.
With only a few days until Super Tuesday, delegates are at stake for the GOP presidential candidates. NBC's David Gregory explains how candidates Mitt Romney and Rick Santorum are campaigning in those Super Tuesday states.
AP Photo/Evan Vucci
Former House Speaker Newt Gingrich speaks during a rally in Woodstock, Ga. on Thursday, March 1
J. Scott Applewhite / AP
Sen. Roy Blunt, R-Mo., talks to reporters following a Republicans strategy session at the Capitol in Washington.