Former Utah Gov. Jon Huntsman, former Massachusetts Gov. Mitt Romney, former House Speaker Newt Gingrich and Texas Gov. Rick Perry (left to right) take their positions after a break in a debate in Manchester, N.H., Saturday.
On the day he revised his tax plan to 9-0-9, Republican presidential candidate Herman Cain signs a supporter's "999" sign after unveiling his "Opportunity Zone" economic plan in front of the Michigan Central Station, an abandoned train depot in Detroit.