James Earl Carter Jr. (born October 1, 1924) is an American politician and humanitarian who served from 1977 to 1981 as the 39th president of the United States.A member of the Democratic Party, he served from 1963 to 1967 in the Georgia State Senate and from 1971 to 1975 as the 76th governor of Georgia.Carter is the longest-lived president in U.S. history and the first to …