Completed the following sentence: He joined the British Communist Party in 1923. He joined the British Communist Party in 1923. <unk> <unk> <unk> <unk>
Soviet invasion of Finland in November, 1939, he publicly condemned the Communists in an article for "The New Republic".<unk> Soviet invasion of Finland in November, 1939, he publicly condemned the Communists in an article for "The New Republic". During the investigations of suspected Communists in the 1950s, he refused to testify before the House Committee on Un-American Activities.<unk> During the investigations of suspected Communists in the 1950s, he refused to testify before the House Committee on Un-American Activities.