CNBC Undercard Republican Debate: Live Coverage

The four candidates on this stage have gotten about as much support from their fellow prominent Republicans as from voters so far. Only Lindsey Graham and Rick Santorum have any endorsements from major elected officials, according to our endorsement tracker — one each. Graham’s lone supporter is Arizona Sen. John McCain, and Santorum’s sole backer is Pennsylvania Rep. Lou Barletta.

Jim Gilmore was not included because only two polls collected data on him, compared with four for the other candidates.

Yes, a couple of Republican presidential candidates have dropped out of the race, but there are still 15 contenders left. That’s a lot. And so here we are, live-blogging a debate among Rick Santorum, Lindsey Graham, George Pataki and Bobby Jindal. Can any of these candidates break through? Is that just a rhetorical question at this point? Programming note: We’re trying something a little different tonight. We’ll start a second, separate live blog at about 7:30 p.m. EDT for the main-stage debate. But in the meantime, send us your questions via Twitter @FiveThirtyEight, or leave us a comment here.