At this point in the Trump era, it’s hard to imagine the president outdoing himself on Twitter, where he recently boasted that his “use of social media is not Presidential - it’s MODERN DAY PRESIDENTIAL.” But on Sunday—in his latest volley against the news media—he may have done it, posting a crudely edited video in which he clotheslined a figure whose face was covered by a superimposed CNN logo, and then pummeled it senseless.