The article explains why the Communist Party of Ukraine (KPU) became marginalised during the insurgency in Donbas despite its ideological closeness to the rebel cause. The KPU was a popular pro-rebel party during the rebellion, but sharing the rebels' ideological background doesn't automatically mean the party will profit from the insurgency to expand or retain a share of power in rebel enclaves during the rebel state-building efforts.
The KPU officials welcomed the protests against the new government in Kyiv and the onset of the anti-Ukrainian insurgency under the Russian patronage in the Donbas. Still, even despite this open support, the party descended into marginalisation.