A law cannot be vetoed a Bill can.I hate to ruin Polk's day. But let's go one step further to illustrate a point.
I STIPULATE that a President's general job description involves enforcing the laws. On the other hand, he also has a DUTY to uphold the Constitution. Now let's add a goodly measure of THIS to the discussion. It is a TRUISM that any law passed that is in derogation of the Constitution is a nullity. It is void from jump street. It is -- in short -- no law at all.
Add these things together in the right proportions and stir and bake at 350 degrees for one hour or until golden brown. The result is: The President MUST not enforce a nominal "law" that is not really a law at all inasmuch as it violates the Constitution which he is obligated to uphold and protect. And he can't wait for a ruling from the SCOTUS refs, either. Their rulings come later. HE has to make the call. Now. He necessarily has the power and the authority to do so.
I would say he should veto the law in that case, but assuming the veto is overridden, I would concur.
You really want to get in to a semantic skirmish after how badly you've already face planted in this thread?

He does not need the Law, he does not need any oversight at all. Due Process does not apply to him. What a guy. 
