Secret Gingrich-Santorum ‘Unity Ticket’ Almost Toppled Romney

Secret Gingrich-Santorum ‘Unity Ticket’ Almost Toppled Romney

Scott Eells/Bloomberg

Newt Gingrich, former U.S. Speaker of the House, left, speaks with Rick Santorum, former U.S. Senator, during a break in a presidential debate at Dartmouth College in Hanover, New Hampshire.