Illinois' ability to change retirement benefits of government workers is limited because of a provision in the state Constitution. But what about trying to make that a non-issue, by doing away with that clause?
Article XIII, Sect. 5 of the Illinois Constitution is direct: pension benefits, it says, "shall not be diminished or impaired."
Nevertheless, a law passed last year cuts benefits for current workers and retirees. Whether that squares with the Constitution is currently the subject of a lawsuit.