If I can believe any of this, DACA is not an Executive Order and never was anything close to a bill in Congress, then DACA is fairy tale fiction and doesn’t actually exist, so we can start deporting illegals immediately.
3 page DACA memo from Janet Napolitano.
This specific fact is amply referred to in numerous court proceedings as well as official and non-official letters that make news, and is not contentious.
The popular wisdom is that DACA was implemented via Obama EO is "close enough," no doubt he ordered Napolitano to implement the policy. Clearly, an EO is not required for the DACA program to exist.