Romney, Perry spar over jobs, Social Security
Republican presidential candidates, from left, former Pennsylvania Sen. Rick Santorum, former House Speaker Newt Gingrich, Rep. Michele Bachmann, R-Minn., former Massachusetts Gov. Mitt Romney, Texas Gov. Rick Perry, Rep. Ron Paul, R-Texas, businessman Herman Cain and former Utah Gov. Jon Huntsman stand together before a Republican presidential candidate debate at the Reagan Library Wednesday in Simi Valley, Calif.