Any election official who is also a candidate for office, other than a position of an election official, shall not be allowed to remain in the area designated for the counting of votes within the guardrail during the counting of votes for an office for which he is a candidate. Such official shall disqualify himself from election duties relating to the tabulation of votes; and the moderator shall appoint an assistant who shall take the same oath as, serve in the same capacity as, and have all the powers of the election official who is disqualified until such official may properly return. The moderator may assign any election official disqualified pursuant to this section to other duties not related to the tabulation of votes.