In 1975 the RCG began publishing a theoretical journal called "Revolutionary Communist" in which it in part espoused a view of crisis theory, a theme they had already addressed in the IS when challenging the work of the theoreticians of that group. They developed Karl Marx, Friedrich Engels and Vladimir Lenin's analysis of the labour aristocracy, and showed its relevance for politics in the period after the Second World War. Their conclusions led them to call for no vote for the Labour Party.