\u201cTwitter could get us into a war.\u201d That sentence, which appears in Bob Woodward\u2019s new book, Fear, about the Trump Administration, has shocked a lot of people. Not me. Because I just wrote a novel in which precisely that same thing happens. And let me tell you: It\u2019s not far-fetched. Of course, we knew that Trump\u2019s chief of staff, John Kelly, and his predecessor, Reince Priebus, both have tried to get the President\u2019s tweeting under control.