Today’s the big day, when Republicans, albeit narrowly, take control of the House of Representatives. But, as they meet to elect a new Speaker of the House, what should be a triumphal moment for House Republicans has turned out instead to be a monumental embarrassment — or, as one Republican member told Politico, a “big belly-flop.” Despite agreeing to give up some of his authority and power as Speaker, House Republican Leader Kevin McCarthy (Calif.) reportedly still doesn’t have enough votes to win. The result is pure chaos. The “Kevin Only” crowd has vowed not to vote for anyone else,...