Byron York: "If Hillary becomes president, who will make her obey the law?"
It appears to be the case that no one can make the President obey the law, though a united Congress can impeach him (or her, in Hillary's case). However, there's no reason to believe that Congress will unite on the point in the supermajority required.
So: no one will make her obey the law. Next question: what are the consequences of turning her loose from all legal restraints, coupled with the power invested in a President?