An agent is usually held accountable to his principals. If you do not know the individuals who voted for you, then you do not know for whom you are acting, nor to whom you are accountable. If any body of persons has delegated to you any authority, the disposal of any right or part of a right (supposing a right to be transferable), you must have received it from the individuals composing that body; and you must have some means of learning who those individuals are, or you cannot know for whom you act, and you are utterly irresponsible as an agent.

The Economic Tendency of Freethought (1890)