Iowa Code § 49.88: Limitation on persons in booth and time for voting.

1. No more than one person shall be allowed to occupy any voting booth at any time. The use of photographic devices and the display of voted ballots is prohibited if such use or display is for purposes prohibited under chapter 39A, interferes with other voters, or interferes with the orderly operation of the polling place.

2. a. Nothing in this section shall prohibit assistance to voters under section 49.90.

b. This section does not prohibit a voter from taking minor children into the voting booth with the voter.

3. A person standing for election on the ballot before a voter commits a violation of this section by occupying the voting booth with the voter, including to assist the voter.