Off by a factor of 2, if you are referring to the Presidential elections in Russia, where the communist party candidate received less than 20% of the vote. 35% roughly includes all parties except Putin's. Although I am not sure that voting against Putin (or voting for the communist party, even) is equivalent to voting to return to communism. Were you referring to a poll, or perhaps another election?
Since I can't find the link, I won't disagree on the numbers you're reporting, but seriously the only one who trusts Russian election results must be Putin (and you).
ps. I'm not saying that he wouldn't have won anyway, but I'm sure that the elections in Russia are extremely well guarded.
I'll admit that I gave official election figures, as estimated by Russian election officials. They are at link [0]. Judging by official results, support for the communist party in Russia has not been anywhere near 30% since the 90's. However the Communist Party is Russia's straw man party, it is built to provide a weak counterexample to Putin and distract those who would otherwise support the main liberal opposition. This is fairly obvious whether you go by official results or western polls. I'm not sure why you think I trust the elections though; you seem to think I am arguing in favor of Putin when I am not. I simply don't think that throwing around a figure like "35% of Russians support communism" is a good idea when it is purposefully misleading and there is nothing to back it up.