So how important is it that, as the New York Times has been reporting, White House Counsel Donald McGahn has been cooperating fully with Mueller’s investigation, to the extent of approximately thirty hours of interviews so far? Unfortunately can’t say at the moment.
McGahn is not The Trumpet’s personal lawyer (like Rudolpho is), but rather the lawyer for the White House, i.e., the institution of the Presidency, and his job is to protect the institution, not the President. That can be tricky because of issues relating to whether the attorney-client and executive privileges apply to their conversations; but, in this case, for reasons that are controversial among The Trumpet’s supporters, the decision was made by Ty Cobb, brought in to handle the Mueller investigation on behalf of the White House, and John Dowd, acting as The Trumpet’s personal lawyer, to cooperate fully with the Mueller probe and waive the attorney-client and executive privileges for both The Trumpet individually and the White House. Based on that, Mueller has obtained a large volume of documents from the White House, and McGahn has cooperated with the Mueller probe by agreeing to be interviewed and not asserting the attorney-client privilege over his discussions with The Trumpet (which might have been futile anyway). Since McGahn was involved with the firing of Comey (a main aspect of the potential obstruction of justice charges against The Trumpet), what he has told Mueller about that is clearly critical, in addition to what he knows about the firing of Michael Flynn early in The Trumpet Presidency in which McGahn was also involved.
There are several odd things about this situation as it is unfolding. First, the Times reporting is that, when the issue first came up over a year ago, Cobb and Dowd were in favor of heavy cooperation with Mueller, while McGahn was against it. However, once the privileges were waived, he has been cooperating extensively (thirty hours of interviews is a lot), apparently because he became concerned that he was being set up by The Trumpet and his lawyers to take “the fall” on the Comey firing, i.e., that The Trumpet will say that he was just doing what McGahn, his lawyer, told him was legally appropriate. So McGahn has wanted to appear to Mueller as being as cooperative and forthcoming as possible. Thus, McGahn changed from a reticent attorney witness (originally opposing any cooperation at all) to what The Trumpet’s supporters now believe has been an overly helpful one, presumably to avoid the fate of John Dean, White House Counsel under Nixon, of himself being charged with obstruction of justice.
Second, the Times reporting is that the extent of McGahn’s cooperation is coming as a surprise to Cobb and Dowd. If true, that shows an unusual lack of communication among the lawyers involved in the various aspects of The Trumpet’s affairs and his administration. Lawyers are used to working together when on the same general side, even when representing different clients or the same client wearing different hats, so the lack of communication here is surprising. Or a reflection of the lack of trust among the various lawyers working in The Trumpet’s orbit. And Dowd and Cobb (now both out of their roles at the White House) are coming under heavy criticism from The Trumpet’s supporters (and others) for pushing their strategy of cooperation with Mueller. And it may turn out to have been a huge mistake from The Trumpet’s standpoint.
So far the substance of the interviews is not known (where is a good leaker when you need one?), and there has been no indication that what McGahn has been telling Mueller is particularly damning to The Trumpet so maybe there isn’t anything. But The Trumpet is apparently very nervous and angry about what McGahn may have said about their conversations. Not that The Trumpet would be likely to spout off anything carelessly. Or say anything that was untrue.