Any sitting president should be able to terminate any presidential deferred actions that have not been legally challenged when initially presented. The Congress makes the laws. The SCOTUS rules on the constitutionality of the laws and legal interpretation of the laws including presidential edicts and deferred actions when initially presented. The SCOTUS does NOT rule on when to END presidential edicts and deferred actions. The SCOTUS has exceeded its authority by ruling on when DACA may be terminated by President Trump.