[1] https://thehill.com/homenews/campaign/4920827-60-minutes-tru...
[1] https://thehill.com/homenews/campaign/4920827-60-minutes-tru...
But I don't think I've ever seen that done actually. Usually, fact checkers are akin to Reddit moderators. Technically independent, but with one important twist. These are people that have a lot of free time and are willing to spend it doing unpaid (or underpaid) work. And that's a huge bias. Big enough to question impartiality, if you ask me.
IIRC, This is mostly what Facebook did after the 2016 election; put together a non affiliated board and made sure it was populated by all sides - Facebook itself had no/minimal control over what said board did/decided; but all decisions were public.
Zuck just gave in to 'community moderation' instead because "actual solutions" are considered a negative in today's political climate.