Nope. It's not possible logistically or politically. Assuming we're talking about the USA, any such body would likely end up as a federal agency, which means i

Nope. It's not possible logistically or politically. Assuming we're talking about the USA, any such body would likely end up as a federal agency, which means it would turn into a political football whenever administrations change over. Each administration would have its own personal approach to the fact-checking, which means that even if you trust politicians (lololol), the fact-checks wouldn't be consistent. The only way to avoid this would be for Congress to be really specific in drafting the legislation, but Congress has incentive not to touch the topic.