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Two Democratic senators are launching an investigation into whether Health Secretary Robert F. Kennedy Jr. lied to Congress about the reason for a 2019 trip to Samoa, PBS NewsHour reported. The probe follows documents published in August by The Associated Press and The Guardian that refute his testimony. The documents, a letter published by the two outlets, contradict the account Kennedy gave lawmakers about the purpose of the trip. The senators have not yet announced a timeline for the inquiry.