A duly constituted Congressional panel has requested to speak to a material witness in an ongoing investigation. The witness himself has indicated through his attorney that he’s willing to testify under oath. So what could possibly go wrong? Well, in this White House … plenty. The House Oversight Committee has requested that the Obama administration make former National Security staffer Kevin O’Reilly available for testimony to explain a series of e-mail exchanges in Operation Fast and Furious in order to determine just how far up the chain knowledge of the operation went in the Obama administration. The White House has refused to make him available, even though O’Reilly has already agreed to testify, and that has Rep. Jason Chaffetz angry: