Robert F. Kennedy Jr. serves as HHS Secretary with sustained White House support more than a year after his February 2025 confirmation. Traders price a 96.5% chance he remains through October 31, 2026, driven by his alignment on MAHA priorities, vaccine schedule revisions, agency reorganization, and recent deployment to midterm campaign events. Administration statements describe a strong relationship with President Trump and position Kennedy as an asset rather than a liability. Congressional inquiries, public health group criticisms, and staffing controversies have not produced removal signals. Realistic shifts could still arise from a sudden policy clash, health-related development, or late-breaking scandal, though no such catalysts appear imminent within the resolution window.