These protestors are funny. . . they call it unconstitutional when in reality an immigration ban is constitutional because it is IN IT. DO YOUR RESEARCH PEOPLE! "Regarding the scope of this power, as the Supreme Court held in its 1982 case United States v. Valenzuela-Bernal, “The power to regulate immigration—an attribute of sovereignty essential to the preservation of any nation—has been entrusted by the Constitution to the political branches of the Federal Government.”'