Justice Clarence Thomas, the Supreme Court’s longest-serving member at age 77, has shown no signs of retirement as of mid-September 2026. Sources close to him stated in April that he has no plans to step down this year or in the near term, consistent with his expressed interest in serving into the 2030s and his recent activity on the bench, including oral arguments. President Trump has publicly encouraged both Thomas and Justice Alito to remain, avoiding vacancies during the current term. No health concerns, ethical issues, or institutional pressures have surfaced to shift this position, and Article III lifetime tenure provides no mandatory timeline. Traders price a very low probability of an announcement by late 2026, reflecting the absence of catalysts that could alter his stated intentions.