Peter Paul Strzok II (/strʌk/, like struck; born March 7, 1970) is a former United States Federal Bureau of Investigation (FBI) agent. He was the Deputy Assistant Director of the FBI's Counterintelligence Division and led the investigation into Russian interference in the 2016 United States elections. Previously, he had been the chief of the division's Counterespionage Section and led the investigation into Hillary Clinton's use of a personal email server.