Chief Justice John Roberts warned a group of graduating laws students Monday that the rule of law is “endangered.” Without naming any names, the conservative justice also said during an event with students at Georgetown University that recent attacks against Supreme Court justices have gone too far.

Chief Justice John Roberts stressed the importance of judicial independence during public remarks Wednesday, noting that the judiciary’s role as a co-equal branch of government is central to the nation’s political system.

Justice John Roberts attended a talk this morning at Georgetown Law, saying that the Constitution is the law of the land. This comes as President Donald Trump and his Administration continue to provoke the Supreme Court.