The Global Compact for Safe, Orderly and Regular Migration is a holistic approach that treats people with kindness and also recognizes economic opportunity.
An estimated 463 parents have already been deported, further complicating the family reunification effort.
In Johannesburg, Obama gave what some commentators consider his most important speech since he vacated the Oval Office.
The private letter, sent more than a year ago, may have had changed Mr. Kelly’s mind for a time.
Another Supreme Court nominee by President Trump could tilt the balance against the 1973 Roe v. Wade court decision that legalized abortion nationwide.