See Full Constitution
Article 11
Section 7. Election on indebtedness
No debt shall be contracted by the state except as herein provided, unless the proposed law for creating such debt shall first be submitted to a direct vote of the electors of the state at some general election; and if such proposed law shall be ratified by a majority of all the votes cast at such general election, then it shall be the duty of the legislature next after such election to enact such law and create such debt, subject to all the provisions and restrictions provided in the preceding section of this article.