In the years in which the Constitution requires, or at other times when the general assembly by law provides for, a vote on the question of calling a convention and revising the Constitution, the governor shall at least sixty days before the general election issue a proclamation directing that at the general election there be proposed to the people the following question:
Shall there be a convention to revise the Constitution, and propose amendment or amendments to same?
Constitutional requirement, Iowa Constitution, Art. X, §3