A clown in a lift

Indeed. I believe he is deliberately trying to provoke a constitutional crises so he can declare a national emergency. In the end it will come down individual decisions on whether to act on his orders when that happens. Given some of the decision thus far it could go either way.

Yes, but the point is that in Ireland it was changed by an amendment to the constitution via a democratic referendum, in other words by the correct legal process. Trump is trying to change the constitution effectively by decreeing it thus and arguing that he has the legal power to do so as President