I can’t tell you what it says, but I can absolutely tell you what it does not say. @NPR just had a commentator say that the report says “there was no collusion with Russia”. I can guarantee that it does not say that. No good attorney, and Bob Mueller is better than good, would say that. Absence of evidence doesn’t absence of guilt. Mueller would never say more than “we found no collusion between the Trump campaign and Russia”. He can’t know whether or nor there was collusion. All he can know is that he found no evidence of it.