What is Too Far When Former Intelligence Community Leadership Criticizes the President?

This edition of The Lawfare Podcast grows out of an email exchange between David Kris and Jack Goldsmith over a draft article Jack had written about John Brennan and other intelligence community former leaders who were criticizing the president in public and from whom the president was threatening to pull their security clearances in response.

What is appropriate for intelligence community leaders to say about the president? What is going too far? What is outside their lane? And what is required by the current moment when intelligence community leaders face a rogue elephant of a president who is violating every norm we know?