Justice Mary Jane Theis Announces Retirement From Illinois Supreme Court; Justice Sanjay Tailor To Fill Vacancy
Illinois Supreme Court Justice Mary Jane Theis has announced her retirement from the Illinois Supreme Court effective January 29, 2026. Justice Theis has served on the Supreme Court since 2010 and retires as one of the most prolific judges in Illinois history, having served in all levels of the judiciary in 40-plus years on the bench. She served as Chief Justice of the Supreme Court from 2022 to 2025.