Sen. Darline Graham (R-SC) may have been crazy like a fox when she delivered what looked like an epic debate flub when she admitted “national security is not my thing,” said one state expert who has been watching the fallout. The comment had shades of a Joe Biden-style collapse when she uttered it Wednesday night in response to a question about Taiwan and the South China Sea during the only debate in the Senate Republican runoff race. But some political pros say it was a designed ploy to separate herself from her opponent Rep. Ralph Norman (R-S.C.). At a minimum,...