Justice Department Letter to Mueller Isn’t Legal Advice
An attempt to restrict what the former special counsel can say to Congress is mostly about policy, not law.
You can take the letter that the Department of Justice has sent to former special counsel Robert Mueller offering “guidance” on his testimony to Congress as evidence of several interesting things. For one, Mueller seems to have wanted an official document from the Justice Department to help him avoid answering questions. For another, the Trump administration seems worried about questions concerning unindicted persons, such as President Donald Trump and his family.
But whatever you do, don’t take the Justice Department letter as the law. The only legal bars to Congress’s demanding answers from Mueller on Wednesday are the Constitution and federal statutes. Those are invoked in the letter, but without much bite. The core of the guidance focuses on departmental policy.