Tydings, Millard Evelyn (tĪˈdĭngz) [key], 1890–1961, American politician, b. Havre de Grace, Md. He was admitted (1913) to the bar, soon built a successful law practice, and became (1916) a member of the Maryland legislature. In World War I he saw action in France. He again served (1920–23) in the Maryland legislature before becoming a Democratic member (1923–27) of the U.S. House of Representatives. In the U.S. Senate after 1927, Tydings opposed much New Deal legislation and on several occasions opposed President Franklin Delano Roosevelt's foreign policy. In 1950 he headed the Senate subcommittee appointed to investigate Sen. Joseph R. McCarthy's allegations of Communist infiltration of the Dept. of State. The committee's report cleared the department and denounced McCarthy as a liar. Tydings was defeated for reelection the same year.