Wis. Stat. § 229.69: Powers granted to a city or a county in a district.

In addition to any powers that it may otherwise have, a city or a county within a district’s jurisdiction may do any of the following:

(1) Make grants or loans to a district upon terms that the city or county considers appropriate.

(2) Expend public funds to subsidize a district.

(3) Borrow money under ss. 67.04 and 67.12 (12) for baseball park facilities or to fund grants, loans or subsidies to a district.

(4) Grant to the state land or other property, especially dedicated by the grant to use for baseball park facilities.