Entryism

Entryism, refers to the revisionist strategy employed by various groups which seeks to change the policies of reformist parties and groups "from within" by having so-called revolutionaries join en-masse. The method has its roots in the essays of Leon Trotsky where he recommended that his adherents in France join the far-larger French Section of the Workers' International .

Today, groups such as the Democratic Socialists of America attempt to utilise entryism to supposedly advocate for socialism in the US American Democratic Party.