Even before the end of World War II, 18 SWP leaders were imprisoned, becoming "the first victims of the notorious Smith Act, which made it a crime of treason to publish and proclaim the ideas of Marx, Engels, Lenin, and Trotsky."
甚至在第二次世界大战结束之前，18名SWP领导人被监禁，成为“臭名昭着的史密斯法案的第一个受害者，这使得发表和宣布马克思、恩格斯、列宁和托洛茨基的思想成为叛国罪”。