Kansas constitution
Article two: legislative
Section 13

A majority of the members then elected (or appointed) and qualified of each house, voting in the affirmative, shall be necessary to pass any bill. Two-thirds (2/3) of the members then elected (or appointed) and qualified in each house, voting in the affirmative, shall be necessary to ratify any amendment to the Constitution of the United States or to make any application for congress to call a convention for proposing amendments to the Constitution of the United States.