Kirk: Mueller Is Calling Barr a Liar

Mueller is saying in one breath that if they had not found a crime, they would have said they had not found a crime, while in the next he says, if they had found a crime, they would not have been able to say so.

FBI Director Robert Mueller III testifies before the Senate Judiciary Committee during a oversight hearing on Capitol Hill December 14, 2011 in Washington, DC. Mueller testified on the topic of "Oversight of the Federal Bureau of Investigation". (Photo by Win McNamee/Getty Images)