So, Attorney General Jeff Sessions has recused himself. Great! Just one question: From what? Yes, yes, Sessions is a good and decent man. He is a scrupulous lawyer who cares about his reputation. Thus, in stark contrast to Obama administration attorneys general, he strictly applied — I’d say he hyper-applied — the ethical standard that calls on a lawyer to recuse himself from a matter in which his participation as counsel would create the mere appearance of impropriety. The standard is eminently sensible because the legitimacy of our judicial system depends not only on its actually being on the up...