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Today’s an important deadline for Lindsey Graham

Graham will have to weigh whether it's worth continuing his long shot presidential bid in the face of a potentially embarrassing showing in his home state.

Senate Armed Services Committee member and Republican presidential candidate Sen. Lindsey Graham (R-SC) listens to witnesses during a hearing on Capitol Hill in Oct. 27, 2015 in Washington, D.C. (Photo by Chip Somodevilla/Getty)
Senate Armed Services Committee member and Republican presidential candidate Sen. Lindsey Graham (R-SC) listens to witnesses during a hearing on Capitol Hill in Oct. 27, 2015 in Washington, D.C.Getty Images

Chuck Todd

Chuck Todd is NBC News' chief political analyst and the former moderator of "Meet The Press."

Mark Murray