>> I suspect that in order to mangle with election one should have elections in the first place, so I guess that its not possible for other governments to do the same on the Chinese internet

> There are elections in China, and there have been for many decades.

There is a reason why the refrain is not just "elections" but "free and fair elections." Communist countries are famous for offering elections with no actual choice.

Election interference in China is not possible, because its "elections" are total shams so there is no point to try.