I’m not sure that Russia really counts as anything other than an actual dictatorship. It’s not like there’s a free and open choice and people just keep voting against their own interests like in the US, the elections are of course rigged and there are no opponents anyway. Anyone that might stand against him gets assassinated.

Of course Trump probably will try and go that route as well, but he hasn’t done it yet, and he hasn’t consolidated his power there are still people in positions of some authority pushing back against him.