To counter such political conditions, Lenin said that a professional revolutionary organisation was necessary to organise and lead the most class-conscious workers into a politically coherent movement. About the Russian class struggle, in the book What Is to Be Done? (1902), against the “economist” trend of the socialist parties (who proposed that the working class would develop a revolutionary consciousness from demanding solely economic improvements), Lenin said that the “history of all countries bears out the fact that, through their own powers alone, the working class can develop only a trade-union consciousness”; and that under reformist, trade-union leadership, the working class could only engage spontaneous local rebellions to improve their political position within the capitalist system, and that revolutionary consciousness developed unevenly. Nonetheless, optimistic about the working class’s ability to develop a revolutionary class consciousness, Lenin said that the missing element for escalating the class struggle to revolution was a political organisation that could relate to the radicalism of political vanguard of the working class, who then would attract many workers from the middling policies of the reformist leaders of the trade unions.