A candidate may require the removal of an officer of election for the election in which he is a candidate by a request in writing, filed at least seven days before the election with the electoral board appointing the officer, on the grounds that the officer is the spouse, parent, grandparent, sibling, child, or grandchild of an opposing candidate. A member of the electoral board may also request the removal of an officer of election whom he knows to be the spouse, parent, grandparent, sibling, child, or grandchild of a candidate in the election by a request in writing, filed at least seven days before the election with the electoral board. Upon receipt of a timely written request pursuant to this section, the electoral board shall ensure that a substitute is appointed to serve for that election.