Donald Trump is POTUS, and this falls under his purview.
Why do we even hold elections anymore? Why do illegal foreigners have more rights than native Americans? Is 0bama still president?
SCrOTUS has been AWOL on this one. And where is Mister Magoo? Hiding under his desk?
Daca was never a eo. Just policy. Obama or Trump never issued a eo for daca.