otherwise. he was not saying that butt for the olc that but for the olc opinion he would have found obstruction. by regulation, it was bound by that department policy. charging the president with a crime was therefore not an option we could consider. there was no evidence of the trump campaign collusion with the russian government s hacking. there was insufficient evidence to charge a broader conspiracy. the evidence developed by the special counsel is not sufficient to establish that the president committed an obstruction of justice offense. if we had had confidence that the president clearly did not commit a crime, we would have said so. there is now a focus on the doj guidelines that a sitting president cannot be indicted. and whether that guided mueller s decision to punt on obstruction. more now from cnn s sara murray in washington. reporter: good morning, dave and michelle. after two years of silence on his investigation special counsel robert mueller