articleThe Brief The U.S. Secret Service is investigating a member of Vice President JD Vance's security detail over an alleged media leak. A member of Vice President JD Vance's security detail is under investigation over allegations of leaking information to the media, the U.S. Secret Service said Thursday. RELATED: Vice President JD Vance’s wife Usha gives birth to couple’s fourth childWhat we don't know:The agency did not identify the person under investigation. Dig deeper:The Secret Service said the investigation is tied to a report from MS NOW last week saying that some Secret Service agents had privately expressed frustration over last-minute travel requests from Vance and his family. RELATED: Vice President JD Vance eyes multimillion-dollar estate in VirginiaBig picture view:Vance and his wife, Usha, live in the vice president's residence at the U.S.