Iowa Code § 39.10
Senators in the Congress of the United States shall be elected in the same manner in which state officers are elected.
Term of office, United States Constitution, Amendment 17 Vacancy in United States senate, see §69.13
[R60, §674; C73, §26; C97, §30; S13, §1087-c; C24, 27, 31, 35, 39, §513; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §39.10]