China still has the structure of rule by the Communist Party, it's still a one-party state. And, at least till recently, still has some elements of internal party democracy at the lower levels. I believe it's still, in terms of politics but not economics, a recognizable mutation/degeneration of Stalinist-type communism (can't say Maoism because that's something else again - his type of insane brutal chaos was supposed to be an effort to prevent that kind of bureaucratic sclerosis, and the backlash against his chaos has affected the Chinese elite mindset ever since).
Russia has much less continuity, as it went through a complete collapse and reconstruction by way of free-market capitalism before ending up with gangsterism.
The Trotskyist line was always that those regimes would have to have a 'political revolution', that would transform the bankrupt political system but retain the state-controlled economy. The precise opposite has happened - the economy went full-on capitalist while the political excrescences that were the unforeseen downsides of the communist idea have continued without much change.
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