January 4, 2012
Republican presidential candidate, former Massachusetts Gov. Mitt Romney, greets supporters at his caucus night rally in Des Moines, Iowa, Tuesday, Jan. 3, 2012. (AP Photo/Charles Dharapak)
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A squeaker of an Iowa victory in hand, Mitt Romney headed into the New Hampshire primary insisting that staying power sets him apart from runners-up Rick Santorum and Ron Paul and the rest of the GOP presidential field. Two rivals already looked shaky — last-place finisher Michele Bachmann canceled a campaign trip Wednesday and Rick Perry was heading home to Texas to think things over.