2024 Iowa Code 69.13 – Vacancies — senator in Congress and elective state officers

2023 Iowa Code 69.13 – Vacancies — senator in Congress and elective state officers

2022 Iowa Code 69.13 – Vacancies — senator in Congress and elective state officers.

2020 Iowa Code 69.13 – Vacancies — senator in Congress and elective state officers.

2018 Iowa Code 69.13 – Vacancies — senator in Congress and elective state officers.

2016 Iowa Code 69.13 – Vacancies

2014 Iowa Code 69.13 – Vacancies – senator in Congress and elective state officers.

2009 Iowa Code 69.13 – Vacancies — senator in Congress and elective state officers