Candidates looking for edge in first GOP presidential debate

This combination of photos shows Republican presidential candidates, top row from left, Sen. Tim Scott, R-S.C., Florida Gov. Ron DeSantis, former South Carolina Gov. Nikki Haley, and Vivek Ramaswamy, bottom row from left, former New Jersey Gov. Chris Christie, former Vice President Mike Pence, North Dakota Gov. Doug Burgum and former Arkansas Gov. Asa Hutchinson. (AP Photo)