For DesertRhino, are you sure the law allows Presidential exemptions, or, since Obama has illegally amended so many laws so many times, do you just assume such a provision exists?
Any law, authored and passed by DemoRats and/or Gopee, is a TRICK, not a law, designed to immunize the elite and make ordinary Americans criminals.
Reference Ayn Rand for the real purpose of "Law", and read my tagline.
Of course President Trump can do or undo anything the National Negro did, IT'S THE LAW!, and it's precedent.