Complex sentence: At the same time the internal turmoil brought on by the Cold War, the Smith Act prosecutions, and the ouster of Earl Browder led to an internal battle in which the Party expelled a number of members who were accused of displaying "white chauvinism".
Split into simpler sentences: At the same time the internal turmoil brought on by the Cold War, the Smith Act prosecutions, and the ouster of Earl Browder, led to an internal battle. The Party expelled a number of members who were accused of displaying "white chauvinism".