Nick Miroff and Maria Sacchetti, Washington Post, June 17, 2019

"President Trump said in a tweet Monday night that U.S. immigration agents are planning to make mass arrests starting “next week,” an apparent reference to a plan in preparation for months that aims to round up thousands of migrant parents and children in a blitz operation across major U.S. cities. ... The president’s claim that ICE would be deporting “millions” also was at odds with the reality of the agency’s staffing and budgetary challenges. ICE arrests in the U.S. interior have been declining in recent months because so many agents are busy managing the record surge of migrant families across the southern border with Mexico.  The family arrest plan has been considered even more sensitive than a typical operation because children are involved, and Homeland Security officials retain significant concerns that families will be inadvertently separated by the operation, especially because parents in some households have deportation orders but their children — some of whom are U.S. citizens — might not. Should adults be arrested without their children because they are at school, day care, summer camp or a friend’s house, it is possible parents could be deported while their children are left behind."