Shock of federal prosecutors at Barrett Prettyman Federal Courthouse in Washington

The desire of the federal government related to the case of Roger Clemens was following: they hoped to prove that this person had lied before the Congress about application of anabolic steroids and HGH. But the government couldn’t do it. It was expected that Andy Pettitte would tell the jury that Roger Clemens had admitted that he had used the banned drugs during a conversation in 1999 or in 2000. But the affirmation of Andy Pettitee was shocking for prosecutors. This person said that he couldn’t affirm that Roger Clemens had used steroids and HGH because he was not sure.
Actually, were the prosecutors of Roger Clemens disappointed by the testimony of Andy Pettitte? This man swore for the 2008 Congressional hearings on usage of steroids in the Major League Baseball that Roger Clemens acknowledged that he had administered HGH. But he pronounced opposite statements at the Barrett Prettyman Federal Courthouse in Washington.
Michael Attanasio, a defense attorney for Roger Clemens, asked Andy Pettitte whether he can affirm that he is 50-50 that he has misunderstood Roger Clemens about HGH. Andy Pettitte answered that he is really 50-50 about this aspect.
When Clemens’ prosecutors heard the answer of Andy Pettitte, they didn’t know what to do. They affirmed that Pettitte never said this way, when he was asked several times.
The judge Reggie Walton noticed that he understood that Andy Pettitte’s answer has been conflicted. In fact, his testimony was following: “I don’t know”.
The attorneys for Roger Clemens utilized the moment of the prosecutors’ confusion. They asked the judge to brush aside Andy Pettitte’s testimony because he was 50-50. According to the attorneys, he probably misunderstood the athlete Roger Clemens or he forgot the details of the conversation.  
The government has noted that the jury still allows taking into account the testimony of Andy Pettitte. ASUSA Dunham has pointed out that under federal rules jury is allowed to choose which testimony to believe. He hopes that the jury will brush aside the testimony that doesn’t support the government.
Thus, the testimony provided by Andy Pettitte and his wife led to problems. Testimonies of Andy’s wife during the first trial led to the declaration of a mistrial by the judge Walton.
Pettitte affirms that he is a friend of Roger Clemens. Clemens must also confirm that they are friends after Andy  Pettitte’s last testimony.