For Trump, deploying the National Guard in LA is a dress rehearsal
David Frum writes: If Trump can incite disturbances in blue states before the midterm elections, he can assert emergency powers to impose federal control over the voting process, which is to say his control. Or he might suspend voting until, in his opinion, order has been restored. Either way, blue-state seats could be rendered vacant for some time. Precedents do exist for such action. In autumn 1871, President Ulysses S. Grant imposed martial law on counties in South Carolina to…