At the 1956 Democratic National Convention in Chicago, Illinois, Adlai Stevenson was renominated on the first ballot, despite a strong challenge from New York governor W. Averell Harriman, who was backed by former president Truman. Stevenson announced that he would leave the choice of the candidate for vice president to the convention; he gave no indication of who he would prefer to have for a running mate. Delegates chose Senator Estes Kefauver of Tennessee on the second ballot.