Well, if I were President I'd be carrying. And probably not too secretively about it either. As for our current one, since he has admitted to using pot and/or selling illegal drugs, wouldn't that cause him to be a prohibited person?
When the SHTF......be the fan.
Whether or not he could by the letter of law, he most certainly could in practice, if he so desired. And he'd never be called on it unless he fumbled with it and had a ND while in public.
Any mission, any conditions, any foe at any range.
Twice the mayhem, triple the force.
Ten times the action, total hardcore.
I don't see why the President couldn't. How do we know they didn't in the past? I don't think the current President does, but he could!