Mueller should be fired. He's a political hatchet man. He's using tactics familiar to the FBI in the Red Baiting and McArthy era... of intimidating witnesses with leaks, innuendo, the appearance of subversion. He is continually broadening his investigation beyond it original parameters in search for ways to squeese anything incriminating out of witnesses.
His methods indicates that he is increasingly desperate as the investigation has not come up with any evidence of collusion. Predawn Raids are intended to paint a picture of a vast criminal conspiracy, without ever having to present any facts.
The damage comes from the completely cooperative mainstream press of presenting an image of criminality, incompetence and subterfuge in the White House. All contacts with the Russians and the Trump organization have been the normal social and incidental interplay that happens in all political, business and diplomatic life.
Hillary lost because she represented a bankrupt political ideology and was herself immensely polarizing as a candidate. The Esablishments are in a state of utter disbelief that all their carefully laid plans and public indoctrination has fallen apart.
What's more Mueller doesn't have any evidence that the Russians had orchestrated anything but the regular type of intrigue, disinformation and intelligence gathering that the US has participated in, with friends and enemies, over the last 70 years.
It is a political witch hunt, orchestrated by both the Republican neocon and Democrat neolib establishments.. both of whom have the same Free Market, Libertarian, anti-nationalist platform.. and their target is the nationalism and populism that Trump represents, which they see as an imminent threat to their globalist agenda.
Mueller should have his scheming little ass kicked out of Washington. Unlike the Saturday Night Massacre, it is the Special Prosecuter's Office, not the Oval Office, that is corrupt.