Constitution of the State of Illinois - ARTICLE VI - THE JUDICIARY
SECTION 12. ELECTION AND RETENTION
(a) Supreme, Appellate and Circuit Judges shall be nominated at primary elections or by petition. Judges shall be elected at general or judicial elections as the General Assembly shall provide by law. A person eligible for the office of Judge may cause his name to appear on the ballot as a candidate for Judge at the primary and at the general or judicial elections by submitting petitions. The General Assembly shall prescribe by law the requirements for petitions.