10 ILCS 5/23-1.10a
Within 15 days of the issuance of Recommended Findings of Fact by a Circuit Judge, any party may serve and file with the Clerk of the Supreme Court written objections to the Recommended Findings. Subsequent to the time that all challenges to Recommended Findings of Fact by a Circuit Judge are required to be filed, the Supreme Court shall determine the contest, either annulling the contested election or declaring the correct results thereof. The Supreme Court may make a de novo determination of those portions of the Recommended Findings to which objection is made. The Supreme Court may accept, reject, or modify, in whole or in part, any of the findings recommended by a Circuit Judge, and may hear witnesses and examine physical evidence to the extent it deems necessary for such determination.
10 ILCS 5/23-1.10a