2009 Iowa Code
Title 2 - Elections and Official Duties
Subtitle 1 - Elections
CHAPTER 43 - PARTISAN NOMINATIONS == PRIMARY ELECTION
43.39 - BALLOT FOR ANOTHER PARTY'S CANDIDATE.

        43.39  BALLOT FOR ANOTHER PARTY'S CANDIDATE.
         If any primary elector write upon the elector's ticket the name of
      any person who is a candidate for the same office upon some other
      party ticket than that upon which the candidate's name shall be so
      written, such ballot shall be so counted for such person only as a
      candidate of the party upon whose ballot the candidate's name is
      written, and shall in no case be counted for such person as a
      candidate upon any other ticket.  

         [S13, § 1087-a6; C24, 27, 31, 35, 39, § 567; C46, 50, 54, 58,
      62, 66, 71, 73, 75, 77, 79, 81, § 43.39]