Il presidente di sezione presiede una sezione elettorale e gestisce le operazioni di voto - dovrebbe corrispondere all'election judge americano:

In the United States an election judge (Called an elections inspector, elections officer or poll worker in some U.S. states) is an official responsible for the proper and orderly voting in local precincts. Depending on the state, they may be registered members of a political party or non-partisan. Election judges are generally volunteers or paid a small stipend for their work. Each voting precinct is staffed with multiple judges.
http://en.wikipedia.org/wiki/Election_judge