July Days
In general, the violent nature of the July demonstrations and the ambiguous involvement of the Bolsheviks turned public opinion against them. As the new head of the Provisional Government, Kerensky desired to re-establish the central government as a strong authority, so in response to the July Days, he began enacting measures to discipline civil disorder. This included the order to arrest Bolshevik leaders for their (assumed) responsibility of the violent July Days.