Proposes to amend the Legislature Article of the Illinois Constitution. Limits a person's total service in the office of Speaker of the House of Representatives, President of the Senate, Minority Leader of the House, or Minority Leader of the Senate to a total of 8 years in any one office and 12 years combined in 2 or more offices. Effective upon being declared adopted and applies to service on or after the second Wednesday in January, 2021.