Really? You would expect the president in this situation to be fully cognizant of the terrible risks involved in descent below minima or scud running?
If the captain is intimidated into attempting an unsafe action, guess what? It's his own bloody fault. Above all else, it's his job to know better. Pilots come under pressure daily from people in positions of authority to do potentially unsafe things. In all known cases, the authority of those in question is superseded by that of the ground. Pilots are expected to plan accordingly.