President Trump isn't the only one. Twitter has become the platform of choice for much of the political and so-called commentary class. Scrolling through Twitter and adding one's two cents, for journalists, politicos and authors, has become what it was for eighth graders a few short years ago to spend their entire evenings browsing through Facebook. Stephen King, for example, spends so much time tweeting that one wonders how he has time to write a single sentence for any forthcoming books. He's just one in a sea of professors, authors and politicians who have taken their talents to the Twitter feed -- where they appear to have a captive audience.