5 ILCS 120/2.07

(a) A public body may not hold or schedule a regular or special meeting on the day of a general primary election, a general election, a consolidated primary election, or a consolidated election, as defined in the Election Code. (b) A home rule unit may not hold or schedule meetings in a manner inconsistent with this Act. This Section is a denial and limitation of home rule powers and functions in accordance with subsection (i) of Section 6 of Article VII of the Illinois Constitution.