[10] In the 2011 Polish parliamentary election, individual members of the KPP started to the Sejm from the lists of the SLD or PPP.

[12] Before the 2020 Polish presidential election, the Communist Party of Poland supported the candidacy of Waldemar Witkowski from Labour Union.

On the contrary..."[19] The KPP spoke against same-sex partnerships, criticizing the political culture of Polish centre-left parties in which "the pinnacle of leftism has become the fight for the rights of sexual minorities".

[20] On its website, the KPP glorified Joseph Stalin as the "Liberator of the Nations"[21] and Kim Jong-Il as the "Great Leader",[22] supported the leadership of North Korea[23] and denied Soviet agency in the Katyn Massacre.

[24] The party considers the Russian invasion of Ukraine to be a "de facto defensive war" of Russia against NATO.

[28] The party also supports the Venezuelan government of Nicolas Maduro, stating that it "condemns the actions of the imperialists and speaks out in defence of the Bolivarian Revolution.

In 2013, Law and Justice activist Bartosz Kownacki [pl] requested the party to be banned because of alleged propagation of totalitarianism.

On January 18, 2019, the District Court in Dąbrowa Górnicza found editors of the magazine Brzask innocent of the alleged offenses.

[42] In 2020, the Public Prosecutor General and Minister of Justice Zbigniew Ziobro requested the Constitutional Tribunal to ban the party, alleging that it had a totalitarian ideology and wanted to seize power violently.