President Trump suggested Monday night that former acting FBI director Andrew McCabe committed treason, making his case in a tweet that cited Fox News’s Sean Hannity, hours after lobbing similar claims at Deputy Attorney General Rod J. Rosenstein. Trump sent the tweet during Hannity’s nightly show, in which the host assailed McCabe for claiming that he and Rosenstein discussed invoking the 25th Amendment to remove Trump from power. Quoting Hannity, Trump wrote, “’The biggest abuse of power and corruption scandal in our history, and it’s much worse than we thought. Andrew McCabe (FBI) admitted to plotting a coup (government overthrow)...