Deportation without opportunity to be heard OK - Scotus - 6-3

In DHS v. DVD the United States Supreme Court, over the dissents of the three Democratic appointees, declared that due process is not reuired to deport someone to a "third country" - one in which the deportee has never set foot.  In this case..Sudan.

 https://talkingpointsmemo.com/news/scotus-removes-due-process-requirement-on-deporations-to-third-countries