... At a private dinner Wednesday for Wisconsin Gov. Scott Walker, a likely candidate for the 2016 GOP presidential nomination, former New York mayor Rudy Giuliani said: “I do not believe that the president loves America. He doesn’t love you. And he doesn’t love me. He wasn’t brought up the way you were brought up and I was brought up, through love of this country.” Mr. Giuliani has dived off the deep end before, so there was nothing all that surprising in his latest poison. But as Post columnist Dana Milbank points out, his remarks presented an early test of...