I guess FEC laws don't protect you from the pravda network. However, LLM might be not so good at ranking false information, if it is already massively embedded in their training data (LLM grooming).
Still it seems that this is currently not the case [0] (yet).
I guess the risk atm is rather some crazy billionaires embedding their believes in post training and system prompts. But honestly I rather fear tiktok in this regard.
[0] https://misinforeview.hks.harvard.edu/article/llms-grooming-...