Leon Trotsky, Nikolay Krestinsky and some others insisted on militarization of trade unions and actually turning them into part of the government apparatus. The Workers' Opposition (Alexander Shlyapnikov, Alexandra Kollontai) demanded that trade unions manage the economy through an "All-Union Congress of Producers" and that workers comprise a majority of Communist Party members and leaders. There were several other factions. Eventually, all of them were defeated at the 10th Congress of the Russian Communist Party (Bolsheviks) by the so-called "Platform of the Ten" headed by Lenin, which called for trade unions to educate workers as "schools of communism" without turning the trade unions into state institutions. After that congress, Vladimir Lenin's saying that "Trade Unions are a School of Communism" became an indisputable slogan.