Donald Trump’s dream of mass deportations is a fantasy

During his campaign for president, Donald Trump has vowed to deport millions of irregular immigrants. Delegates at the Republican National Convention last month in Milwaukee waved “Mass deportation now!” signs. He portrays the policy as something he could achieve by sheer force of will. But the grinding pace of Judge Thielemann’s courtroom in Dallas is just one example of the ways in which carrying out mass deportations would be harder than Mr Trump allows. In practice, such an effort would be stymied by legal, logistical and political obstacles.