Section 4. Constitutional convention.

(a) The power to call a convention to consider a revision of the entire constitution is reserved to the people. It may be invoked by filing with the custodian of state records a petition, containing a declaration that a constitutional convention is desired, signed by a number of electors in each of one half of the congressional districts of the state, and of the state as a whole, equal to fifteen per cent of the votes cast in each such district respectively and in the state as a whole in the last preceding election of presidential electors.
(b) At the next general election held more than ninety days after the filing of such petition there shall be submitted to the electors of the state the question: “Shall a constitutional convention be held?” If a majority voting on the question votes in the affirmative, at the next succeeding general election there shall be elected from each representative district a member of a constitutional convention. On the twenty-first day following that election, the convention shall sit at the capital, elect officers, adopt rules of procedure, judge the election of its membership, and fix a time and place for its future meetings. Not later than ninety days before the next succeeding general election, the convention shall cause to be filed with the custodian of state records any revision of this constitution proposed by it.