No, this is not about the fact that some of Giuliani’s tactics seem bizarre and destined, albeit unintentionally, to hurt the president—who, surprisingly, doesn’t seem to care. And it’s not about the fact that Giuliani often seems to be outright lying to the media when he purports to be representing the president and pushing his agenda.

Rather, it is apparent that, at a minimum, Giuliani is a critical witness to events involving “the call” to the Ukrainian president. Bad enough, but here is the real thing. Isn’t it just possible that Giuliani could ultimately be viewed as a co-conspirator (assuming improper or illegal acts were committed) so that ethically he cannot and should not be representing “his client”—the president of the United States.