[mesh]

I dont think its good for anyone that the executive just says it won't enforce a law.

[umanwizard]

The same mechanism is how cannabis is “legal” in several states — Obama and all subsequent presidents have refused to enforce the federal laws against it.

[cle]

This is pretty normal. Even George Washington declined to enforce the law at times. A widespread recent example of "discretion" is the lack of enforcement of federal drug laws WRT marijuana. There are 39 states flaunting federal law, and presidents haven't bothered enforcing it.