Pataki, Huckabee, Santorum and Graham pose before participating in a forum for lower polling candidates...
Former New York Gov. George Pataki, former Arkansas Gov. Mike Huckabee, former Pennsylvania Sen. Rick Santorum and South Carolina Sen. Lindsey Graham (L to R) pose before participating in a forum for lower polling candidates held before the Republican presidential debate in Las Vegas, Nevada December 15, 2015. REUTERS/Mike Blake