U.S. Health and Human Services Secretary Robert F. Kennedy Jr. has initiated a major leadership shakeup by firing two top aides: Chief of Staff Heather Flick Melanson and Deputy Chief of Staff for Policy Hannah Anderson. The dismissals, which occurred amid internal conflicts and personality clashes within the department, were confirmed by multiple sources and a spokesperson. Matt Buckham has been appointed as acting chief of staff effective immediately. These changes come as part of Kennedy's broader efforts to advance his "Make America Healthy Again" agenda. Additionally, Kennedy plans to remove all members of the U.S. Preventive Services Task Force, the advisory panel responsible for determining which cancer screenings and preventive health measures insurers must cover. This move has drawn criticism from major medical groups, including the American Medical Association, which expressed deep concern over the potential overhaul. The planned removal of the advisory panel members could impact coverage of cancer screenings and HIV prevention drugs, with analysts noting possible risks for related pharmaceutical companies. The shakeup and advisory panel changes follow a recent Supreme Court decision that has enhanced Kennedy's authority over preventive care policies within the department.