IRS Commissioner John Koskinen on the hot seat

In response to Oversight Committee Chairman Darrell Issa asking about IRS Commissioner John Koskinen's earlier promise to the committee in March to turn over all documents.
Koskinen engages in some amazing double talk about what he meant by his promise that there would be no problems with him turning over all the promised emails: "I never said that I would provide you emails that we didn't have."