It is important to keep in mind, moreover, that we have seen only a small portion of the evidence that Mueller is accumulating. What has been reported in the media is damning enough. Just last week, for example, we learned that the head of Cambridge Analytica, the data firm paid $5.9 million by the Trump campaign, contacted Julian Assange of Wikileaks to ask for help in finding Hillary Clinton's emails. Just imagine how much Mueller knows that isn't public knowledge. No one in the media, for example, was talking about Papadopoulos until Monday. Mueller will learn even more if he can "flip" more of his "targets" and turn them into cooperating witnesses against the president — something that has already happened with Papadopoulos.