The chapter takes the case of the formation of the Constitutional Democratic party (the Kadets) in the context of emerging mass politics, 1905 revolution, and political reforms. Going against the genealogical approach, the author stresses the contingency and novelty of party liberalism in the early twentieth century. In particular, the chapter explores the heterogeneity of the Kadet ranks, the concept of rupture and pluralism in self-representation of the nascent liberal party, and techniques of compromise and negotiation in the pluralist political setting that allowed the party and its platform to cohere. The author also argues that the pluralism of political and ideological context of the Kadet party formation was also matched by pluralism of mobilized space of imperial diversity, that included national, regionalist, and autonomist voices. The context of mobilized imperial diversity is shown to be not only inhibiting, but aiding the liberal politics in the Russian Empire.
The problem of evaluation of the real power of players when they make collective decisions is considered. The new model of the real power evaluation is proposed. The basics of the new model are: modification of the classical power Shapley - Shubik index for accounting of possibility of coalition formation, adding of the new index of the position of coincidence which is evaluating the closeness of the political position of groups and faction, and the new developed index of power efficiency. The index of power efficiency shows to what extend the players exercised their potential power which depends on the number of their votes. Besides, a new way of accounting the impact of cohesion of groups and factions in their final power score is proposed. This model is applied for the evaluation of the power distribution at the Russian State Duma of the 3d convocation.