James R. Jones

James Robert Jones (born May 5, 1939) is an American lawyer and Democratic politician. He was a U.S. Congressman from Oklahoma between 1973 to 1987. He was the U.S. Ambassador to Mexico from 1993 to 1997. 
From 1968 to 1969, he was acting White House Chief of Staff for the Lyndon B. Johnson administration.
In 1972, after returning to Oklahoma, Jones ran for Oklahoma's 1st congressional district. He won the election and was re-elected six times. During his tenure in Congress, which lasted until 1987, Jones served four years as the Chairman of the House Budget Committee.