Rational Security: The 'Rubicon: Crossed?' Edition

This week, the gang talks about the explosive revelations of a whistleblower regarding a phone call that Trump had with the president of Ukraine. What's the political and legal significance? What does it mean for U.S. national security? And how is an impeachment inquiry likely to proceed?

Ben needs a drink.

And, Susan recommends a New York Times column about journalists in harm's way.