Where do Republicans get that special talent for turning gold to dross? They score an electoral “massacre” (The Economist) in 2014 and, a year later, what do they have to show for it other than another threat to shut down the government? Hillary Clinton is caught in email flagrante and Benghazi mendacity and yet, with one Kevin McCarthy gaffe and a singularly ineffective 11-hour Benghazi hearing, Republicans render her sanitized.