The author continues his work on the legacy of Lenin on the so called organisation question. The study reconstructs Lenin's views on the party in the early days – showing it by historical sources. Revolutionary party can be established only in revolutionary times. Due to lack of revolutionary working class movement an emigrant syndrome had developed. The debate between Lenin and Bogdanov (1907-1912) after the failed revolution is exiting, because actual theoretical and methodological conclusions can be based on it. Lenin represented the Marxist approach to politics in a given historical situation against Bogdanov, Mensheviks and the so called leftist Bolsheviks.

The study reviews the history of popular fronts between the two World Wars, focusing mainly on criteria of interpreting it, and also discusses the reality of ideas and tactics of popular fronts after World War II until recent times. The study aims to rise questions, which induce optimal political answers against present right-extremist and authoritarian global tendencies.

After the victory of the October Revolution, revolutionary socialist parties and groups all over the world tried to follow in their organisation structure the so called "Leninist party model". The author of the discussion paper argues that this special Leninist party model never existed – the Bolshevik Party followed especially organisation standards of western social democratic parties. What subsequent revolutionary movements regarded as the ideal model was in fact the simplified version of the Bolshevik Party's structure, which developed after the party had taken the power and which was infected with bureaucratic distortions. Insisting on this wrong organisational model has greatly contributed to the defeat of revolutionary socialism in the 20^th Century.