The deadline for a deal on the Iranian nuclear program is on June 30. Just weeks before the deadline, Colin Kahl, the National Security Adviser to Vice President Joe Biden, sat down with Ryan Evans to talk about the nuclear negotiations over drinks at the Jefferson Hotel's Quill Bar. Ryan lobbed every objection to the deal he could come up with at Colin. The result was one of the most candid conversations we've ever seen from a senior administration official on what might be a monumental event in the history of diplomacy. Have a listen!