28th Congress of the Communist Party of the Soviet Union

The 28th Congress of the CPSU (July 2, 1990 – July 13, 1990) was held in Moscow. It was held a year ahead of the traditional schedule and turned out to be the last Communist Party of the Soviet Union (CPSU) congress in the history of the party. Notably, this congress displayed open factionalism: opposing views were championed by the centrist "CPSU Central Committee platform" (supported by Gorbachev), the liberal "Democratic Platform" (which included Boris Yeltsin) and the conservative "Marxist Platform".

The first Plenum of the new 28th Central Committee was held July 13–14, and with the exception of Gorbachev, a completely new 28th Politburo was elected.

Various organizations claiming to be the successor of the CPSU have held congresses continuing the numbering established by the CPSU and its predecessors. The Communist Party of the Soviet Union (1992) held its so-called XXIXth Restorative CPSU Congress in 1992 declaring the CPSU reinstated. Similarly, the Union of Communist Parties — Communist Party of the Soviet Union, established in 1993, has also held congresses starting from XXIX, the most recent being the XXXIIIrd Congress.

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