Wisconsin constitution
Article IV: legislative
As amended april 1956, april 1967, april 1974, april 1977 and april 1992.

(3) Subsection (1) shall not apply to increased benefits for persons who have been or shall be granted benefits of any kind under a retirement system when such increased benefits are provided by a legislative act passed on a call of ayes and noes by a three−fourths vote of all the members elected to both houses of the legislature and such act provides for sufficient state funds to cover the costs of the increased benefits.