§ Iowa Code § 49.39Dual nomination

49.39 Dual nomination.
When two or more political parties, or when two or more political organizations which
are not political parties, or when a political party and a political organization which is
not a political party, nominate the same candidate for the same office, such nominee shall
forthwith designate, in writing, the political party name, or the political organization name,
under which the nominee desires to have the nominee’s name printed on the official ballot
for the ensuing general election; such written designation shall be filed with the officer with
whom the nomination paper, or certificate of nomination by a convention or caucus, is filed
and the name of such nominee shall appear on the ballot in accordance therewith.