A doctor who played a crucial role in Health Secretary Robert F. Kennedy Jr.’s brash decision to cancel millions of dollars in mRNA vaccine funding was fired this weekend from the Department of Health and Human Services. Dr. Steven J. Hatfill claims that his ouster as a senior adviser is part of a “coup” against Kennedy, adding that he believes that he is the first duck to fall as part of a “coup to overthrow Mr. Kennedy” led by the secretary’s current chief of staff, Matt Buckham. Hatfill hasn’