Powerful people should not enjoy the same privacy guarantees that regular citizens do. They are there to represent us, and we deserve to know if they are incapable of doing that, whether because of health reasons or because they are in the pocket of lobbyists.

Agreed that a random pharmacist, with unknown motivations, should be disclosing any of this. The doctor who prescribed the meds should be (a) encouraging the representative to resign; (b) disclosing it to a proper authority; (c) disclosing to the news media if nothing is done.