The longtime editor-in-chief, who joined Vogue in 1988, announced the news in a staff meeting the morning of June 26NEED TO KNOWAnna Wintour is stepping back as American Vogue's editor-in-chief after 37 years in the roleWintour will stay on as Condé Nast’s global chief content officer and global editorial director at VogueAmerican Vogue will seek to replace the role with head of editorial contentAfter 37 years at the helm of American Vogue,