This article is part of David Leonhardt’s newsletter. You can sign up here to receive it each weekday.

“If [Robert] Mueller doesn’t land a single additional indictment (and, to be clear, I think there will be more), he will have conducted one of most important counterintelligence investigations in U.S. history, something that will stand with cases like Aldrich Ames or the Rosenbergs,” Garrett Graff, the journalist and author of a book about the F.B.I., wrote this weekend.

“We should not allow Trump allies to minimize, downplay, or distract from what Mueller has already found — corruption and criminality at the heart of American politics,” Graff added.

Also: “Too many people have been waiting for Robert Mueller to formally say what we already know to be true: The levels of corruption, conflict of interest, and untruth in this administration are without parallel,” Slate’s Dahlia Lithwick writes. And this Lawfare guide, from Mikhaila Fogel, Susan Hennessey, Quinta Jurecic and Benjamin Wittes, offers four principles for understanding Mueller’s forthcoming work.