Illinois House Speaker Emanuel “Chris” Welch and Senate President Don Harmon issued a joint proclamation calling on the Legislature to convene on August 31 for a one-day special session to make changes in the new state legislative district map after official 2020 population numbers were released last week by the U.S. Census Bureau.

The House and Senate approved the state legislative map on May 28 with only Democratic votes, and Gov. JB Pritzker signed the map into law on June 4.

Republicans have filed a lawsuit in federal court to invalidate the map and give the redistricting commission remapping authority, claiming if a valid redistricting plan with the full force and effect of law was not completed by June 30, the Illinois Constitution shifts the responsibility for drafting a plan from the General Assembly to a redistricting commission.