John R. Bolton
John Danforth appointed Schweich to be his chief of staff when he was the United States Ambassador to the United Nations. Schweich also served as chief of staff to the next two ambassadors to the United Nations, Anne W. Patterson and John R. Bolton. During his time serving the United Nations delegation, he helped the delegation uncover the Oil for Food Scandal, a scheme by Saddam Hussein to circumvent United Nations sanctions using bribery and kickbacks to U .N. and other officials.