“the President could refuse to enforce it”
This appears to be what the President is doing with regard to the various decriminalizing, legalizing and medical marijuana laws popping up in the several states now. What I wonder is why Republicans in Congress are trying to defy the will of 70% of DC voters who want the same legalization rights as Colorado, Washington, and Alaska. Something does not add up right here.
The reasons are all important. Obama is illegally and unconstitutionally forwarding his socialist agenda by refusing to do what he was sworn to do. That is really the opposite of what I am suggesting.
The right thing to do is “preserve, protect, and defend” the Constitution. If that means a President refuses to enforce an unconstitutional law passed by Congress over his veto because in good faith he believes, can show, and make a case for its unconstitutionality, then I believe the Constitution gives him that option. He should also go to SCOTUS to review the law and get a restraining order in the meantime.