LIVEBLOG: First 2016 GOP Presidential Debate

LIVEBLOG: First 2016 GOP Presidential Debate

Trump starts a circus of boos and cheers by refusing to pledge not to mount an independent run if he fails to secure the GOP nomination. Rand Paul takes the bait and nips at trumps heels. Not a pretty picture for the first 5 minutes.

Ben Carson deflects Megyn Kelly's question about his knowledge of affairs foreign and domestic, basically saying folks will see if he can bring it tonight.