GOP Debate in Charleston Tonight

Thursday night’s Republican presidential debate in North Charleston, S.C., will be the sixth of the primary campaign, but only the next to last before the Iowa caucuses on Feb. 1. And as Newt Gingrich can attest, face-offs held in the final weeks and days before the nominating contests tend to matter more. And the attacks tend to get rougher.

Establishment Republicans are bracing themselves for a circular firing squad as the 2016 GOP candidates gather here for Thursday's debate.