Liberals pointed out that a lot of completely fake news was being shared on Facebook, mostly by conservatives. I had a thread on this where a creator of fake news talked about how they tried getting liberals hooked, but it never worked.
Now conservatives are just labeling anything that makes them look bad "fake news" just like they're labeling anything that doesn't lean in their favor "alt left."
They just take whatever they're guilty of and try to turn it around on their opponents. No originality, no thought, just blind, desperate sophistry.