**RFK Jr. remains HHS Secretary with strong backing from President Trump, supporting trader views that he will likely stay in the role through December 31, 2026.** As of early September 2026, he continues implementing “Make America Healthy Again” priorities, including vaccine schedule revisions, agency reorganizations, leadership changes at HHS components, and staffing shifts that have increased political appointees. Recent coverage marking his one-year anniversary in the post highlights ongoing policy activity and White House alignment, with Trump publicly endorsing him and no reported moves toward removal or resignation. Internal agency tensions and external criticism exist, but these have not produced verifiable developments that would shift the implied probability away from continuation. The market reflects consensus on sustained tenure absent major new catalysts before year-end.