Ill. Sup. Ct. R. 4.5
COMMENTS
[1] In campaigns for nonjudicial elective public office, candidates may make pledges, promises, or commitments related to positions they would take and ways they would act if elected to office. Although appropriate in nonjudicial campaigns, this manner of campaigning is inconsistent with the role of a judge, who must remain fair and impartial. The potential for misuse of judicial office, and the political promises that the judge may make in the course of campaigning for nonjudicial elective office, together dictate that a judge who wishes to run for such an office must resign upon becoming a candidate.
[2] The "resign to run" rule set forth in paragraph (A) ensures that a judge cannot use the judicial office to promote such candidacy and eliminates any potential issue of postcampaign retaliation by a judge defeated in an election. When a judge is seeking appointive nonjudicial office, however, the dangers are not sufficient to warrant imposing the "resign to run" rule.