Deputy Attorney General Rod Rosenstein revealed Tuesday at an event at Washington, D.C.’s Newseum that he has been privately “threatened,” a troubling indication of the level of threat the rule of law faces under President Donald Trump’s administration.

He made the remarks when he was asked about recently leaked efforts to draft impeachment documents against him by congressional Republicans.

“I don’t have anything to say about documents like that that nobody has the courage to put their name on,” he said. “There have been making people who have been making threats, privately and publicly, against me for quite some time. And I think they should understand by now: The Department of Justice is not going to be extorted. We’re going to do what’s required by the rule of law. And any kind of threats that anybody makes are not going to affect the way we do our job.”

Watch Rosenstein’s comments below: