Iowa Code § 49.33: Single voting target for certain paired offices.

Immediately opposite the names of each pair of candidates for president and vice president, a single voting target shall be printed next to the bracket enclosing the names of the candidates for president and vice president. A single voting target shall be printed next to the bracket enclosing the names of the candidates for governor and lieutenant governor. The votes for a team of candidates shall be counted and certified by the election board as a team. Write-in votes shall also be tabulated as a single vote for a pair of candidates.