The Bolsheviki did this, it should be remembered, not merely in cases where Mensheviki or Socialist-Revolutionists were in the majority, but also in cases where the majority consisted of members of the Socialist-Revolutionary party of the Left—­the faction which had united with the Bolsheviki in suppressing the Constituante.  Their union with the Bolsheviki was from the first a compromise, based upon the political opportunism of both sides.  The Socialist-Revolutionists of the Left did not believe in the Bolshevik theories or program, but they wanted the political assistance of the Bolsheviki.  The latter did not believe in the theories or program of the Socialist-Revolutionists of the Left, but they wanted their political support.  The union could not long endure; the differences were too deeply rooted.  Before very long the Bolsheviki were fighting their former allies and the Socialist-Revolutionists of the Left, like Marie Spiridonova, for example, were fighting the Bolsheviki.  At Kazan, where Lenine went to school, the Soviet was dissolved because it was controlled by Socialist-Revolutionists of the Left, former allies, now hostile to the Bolsheviki.  Here are two paragraphs from Izvestya, one of the Bolshevist official organs: 

KAZAN, July 26th.  As the important offices in the Soviet were occupied by Socialist-Revolutionists of the Left, the Extraordinary Commission has dissolved the Provisional Soviet.  The governmental power is now represented by a Revolutionary Committee. (Izvestya, July 28, 1918.)

    KAZAN, August 1.  The state of mind of the workmen is
    revolutionary. If the Mensheviki dare to carry on their
    propaganda, death menaces them. (Idem, August 3.)

And here is confirmation from another official organ of the Bolsheviki, Pravda: 

KAZAN, August 4th.  The Provisional Congress of the Soviets of the Peasants has been dissolved because of the absence from it of poor peasants and because its state of mind is obviously counter-revolutionary. (Pravda, August 6, 1918.)

As early as April, 1918, the Soviet at Jaroslav was dissolved by the Bolshevik authorities and new elections ordered.[41] In these elections the Mensheviki and the Socialist-Revolutionists everywhere gained an absolute majority.[42] The population here wanted the Constituent Assembly and they wanted Russia to fight on with the Allies.  Attempts to suppress this majority led to insurrection, which the Bolsheviki crushed in the most brutal manner, and when the people, overpowered and helpless, sought to make peace, the Bolsheviki only increased the artillery fire!  Here is an “Official Bulletin,” published in Izvestya, July 21, 1918: 

    At Jaroslav the adversary, gripped in the iron ring of our troops,
    has tried to enter into negotiations. The reply has been given
    under the form of redoubled artillery fire.