Marxist-Leninist, socially conservative party and the nation's second-largest. Party was preceded by the Communist Party of the Soviet Union (CPSU), banned in 1991. Party was co-founded by Gennady Zyuganov in 1993 as the "Communist Party of the Russian Federation" to distinguish it from a panoply of parties setting up with the title "Communist." Party forms the largest opposition in Russia's Duma [Коммунистическая партия Российской Федерации (KPRF)].