Sen. Lindsey Graham (R-SC) called on Mark Robinson, the Republican nominee for governor in North Carolina, to “sue the hell out of CNN” after the outlet reported on comments he wrote on a pornographic website. During a Sunday interview on Meet the Press, host Kristen Welker asked Graham if Republican presidential nominee Donald Trump should withdraw his endorsement of Robinson. “He deserves a chance to defend himself, Mark Robinson,” Graham dodged. “The charges are beyond unnerving. If they’re true, he’s unfit to serve for office. If they’re not true, he has the best lawsuit in the history of …