Trump should say, "Due to the blatant lies and propaganda that NBC, CNN, etc. spread on a daily basis, we are going to fact check every political piece they run. If they don't stop with the bias attacks and stick to reporting the truth, they will no longer be considered news and have no place amongst us. This is not freedom of press, it's the attack on democracy that you claim to be defending with your violent rhetoric and we don't owe our time to Opeds."
But they have to truly fact check it, no manipulated "from a certain point of view" truths.