This is the harder than you think. You might make it illegal to say "Hillary Clinton is guilty of <something>" - it actually is - it's a civil matter and Clinto

This is the harder than you think. You might make it illegal to say "Hillary Clinton is guilty of <something>" - it actually is - it's a civil matter and Clinton can sue you for defamation. But, if you make it an opinion or a conjecture by adding enough hyperbole, you'll get away with it. That's not easy to ban. Any attempt to do so infringes on basic rights. It very soon becomes thought police. The only sane solution to this is to educate the masses, give them the tools to may be verify facts ...etc. (I'm in favor of banning organized news manufacturing. But I fully acknowledge that it's not practical and leaves a lot of room for bias. If President Trump gets that power, there's nothing stopping him from banning CNN entirely and I'm pretty convinced that he would.)