And of course McCain would hand it over the authorities, then the intelligence agencies would go through the process of vetting its legitimacy. From the NBC report:
According to the senior official, the two-page summary about the unsubstantiated material made available to the briefers was to provide context, should they need it, to draw the distinction for Trump between analyzed intelligence and unvetted “disinformation.”
Right, everyone important has already seen this, and were going to sit on it until it was proven. BuzzFeed gets a hold of it and makes the decision that we should REALLY make sure it’s untrue by publishing it. Trump was briefed it was coming.