The two stage theory was developed by the Mensheviks as their perspective for the Russian revolution. It basically states that, since the tasks of the revolution are those of the national democratic bourgeois revolution, the leadership of the revolution must be taken by the national democratic bourgeoisie. For his part, Lenin agreed with Trotsky that the Russian Liberals could not carry out the bourgeois-democratic revolution, and that this task could only be carried out by the proletariat in alliance with the poor peasantry. Following in the footsteps of Marx, who had described the bourgeois "democratic party" as "far more dangerous to the workers than the previous liberals", Lenin explained that the Russian bourgeoisie, far from being an ally of the workers, would inevitably side with the counter-revolution.