Constitution of the State of Ohio Art. III, § 18

Should the office of Auditor of State, Treasurer of State, Secretary of State, or Attorney General become vacant, for any of the causes specified in the fifteenth section of this article, the Governor shall fill the vacancy until the disability is removed, or a successor elected and qualified.  Such successor shall be elected for the unexpired term of the vacant office at the first general election in an even numbered year that occurs more than forty days after the vacancy has occurred;  provided, that when the unexpired term ends within one year immediately following the date of such general election, an election to fill such unexpired term shall not be held and the appointment shall be for such unexpired term.