Personnel: Marwan Muasher at Carnegie Endowment for International Peace (Vice President for Studies)

NoteThe source text directly confirms all three key fields of the record. It identifies Marwan Muasher as a person, states his organization as Carnegie Endowment for International Peace (referred to as 'Carnegie'), and explicitly lists his role as 'Vice President for Studies'. The source is from the organization's senior leadership page and provides additional context about his responsibilities and background, but does not contradict any of the claimed fields.