The US Democratic Party or the Communist Party of Greece

[politicus]

you don't consider Lenin to be a true communist?

Lenin certainly wasn't an orthodox Marxist. His "heretical" interpretation of Marxism led to all the horrible regimes which called themselves Communist, but you could argue that both  he and they simply deviated too much from the original idea to be considered genuine Communism.

Still, they took the label and redefined the meaning of the term. But nevertheless Leninist Marxism is easily the worst kind of Marxism.