1952 Democratic Party presidential primaries in the context of "1952 Democratic National Convention"

Carey Estes Kefauver (/ˈɛstɪs ˈkiːfɔːvər/;July 26, 1903 – August 10, 1963) was an American politician from Tennessee. A member of the Democratic Party, he served in the U.S. House of Representatives from 1939 to 1949 and in the U.S. Senate from 1949 until his death in 1963. He was the winner of most of the 1952 Democratic Party presidential primaries, though he was not nominated at the convention.

After leading a much-publicized investigation into organized crime in the early 1950s, he twice sought his party's nomination for President of the United States. In 1956, he was selected at the Democratic National Convention to be the running mate of presidential nominee Adlai Stevenson. He continued to hold his U.S. Senate seat after the Stevenson–Kefauver ticket lost to the Eisenhower–Nixon ticket. Kefauver was named chair of the U.S. Senate Antitrust and Monopoly Subcommittee of the Senate Judiciary Committee in 1957 and served as its chairman until his death.

The United States Senate Special Committee to Investigate Crime in Interstate Commerce was a special committee of the United States Senate which existed from 1950 to 1951 and which investigated organized crime which crossed state borders in the United States. The committee became popularly known as the Kefauver Committee because of its chairman, Senator Estes Kefauver. The televised hearing helped Kefauver become a household name; he subsequently launched an unsuccessful bid for the presidency in 1952, and became the Democratic vice presidential nominee in 1956. The term capo di tutti capi was introduced to the U.S. public by the Kefauver Commission.