Iowa Code Title II. Elections and Official Duties [Chs. 39-79] § 69.13. Vacancies--senator in Congress and elective state officers

1. If a vacancy occurs in the office of senator in the Congress of the United States, secretary of state, auditor of state, treasurer of state, secretary of agriculture, or attorney general eighty-nine or more days before a general election, and the unexpired term in which the vacancy exists has more than seventy days to run after the date of that general election, the vacancy shall be filled for the balance of the unexpired term at that general election and the person elected to fill the vacancy shall assume office as soon as a certificate of election has been issued and the person has qualified.

2. If the unexpired term of office in which the vacancy occurs will expire within seventy days after the date of the next pending election, section 69.11 applies.