It has long appeared that the Republican obsession with investigating the 2012 terrorist attack in Benghazi, Libya was not a genuine attempt to get the facts behind a tragic incident in which four Americans, including the United States ambassador, lost their lives but a partisan witch hunt targeting Hillary Rodham Clinton, the frontrunner for the 2016 Democratic presidential nomination. Now there is proof of the duplicity and political chicanery behind the creation of the Select Committee on Benghazi. It was ham-handedly exposed by Representative Kevin McCarthy, who, in his quest to become the next speaker of the House, couldn’t resist boasting about what he considers his party’s major political accomplishment. “Everybody thought Hillary Clinton was unbeatable, right?” Mr. McCarthy, Republican of California, told Fox News. “But we put together a Benghazi special committee, a select committee, what are her numbers today? Her numbers are dropping, why? Because she’s untrustable. But no one would have known any of that had happened.”