Will you insist he enforce all provisions of Obamacare? What about an assault weapons ban if one is signed in to law?
No one will have to inist that he enforce those. And that's the whole point; he enforces what he wants to enforce and ignores what he doesn't want to enforce: immigration law, DOMA and now some drug laws.
I know no method to secure the repeal of bad or obnoxious laws so effective as their stringent execution.
-Ulysses S. Grant