Justice Clarence Thomas, the Supreme Court’s senior associate justice at age 78, has shown no public or private signals of imminent retirement as of September 2026. Sources close to him confirmed in April that he has no plans to step down this year or in the near term, aligning with his past statements about serving well into the 2030s. President Trump has expressed a preference for Thomas and Justice Samuel Alito to remain on the bench rather than create vacancies during the current term. Recent developments, including Thomas actively questioning counsel during September oral arguments after years of silence, offer no evidence of health concerns or external pressures that would prompt an announcement. Trader consensus on Polymarket reflects this stability, pricing near-term resolution dates in 2026 at single-digit implied probabilities while assigning higher odds to mid-2027. Article III lifetime tenure and the absence of term limits or mandatory confirmation processes further reduce near-term certainty.