Lyndon Baines Johnson character jug produced by Sebastian Originals of Encino, California, circa 1973. Lyndon Baines Johnson (1908-1973) was an American politician who served as the 36th president of the United States from 1963 to 1969. He became president after the assassination of John F. Kennedy, under whom he had served as the 37th vice president from 1961 to 1963. A Democrat from Texas, Johnson also served as a U.S. representative and U.S. senator. Johnson is one of only three people to have served in all four federally elected positions of the U.S. government. Johnson's Great Society was aimed at expanding civil rights, public broadcasting, access to health care, aid to education and the arts, urban and rural development, and public services. He sought to create better living conditions for low-income Americans by spearheading the war on poverty. As part of these efforts, Johnson signed the Social Security Amendments of 1965, which resulted in the creation of Medicare and Medicaid.