(1866–1937)
a British prime minister . He was leader of the Labour Party (1911–14 and 1922–31) and the first Labour prime minister (1924 and 1929–31). His second government failed to deal with economic difficulties, and was replaced by a coalition government (= one supported by all parties). MacDonald continued as prime minister (1931–5), but left the Labour Party, an act which made him unpopular with Labour supporters. In 1935 he resigned and was replaced by Stanley Baldwin .