Robert Mueller's words will carry more weight than William Barr's... [View all]
If he contradicts Barr's conclusions, it will be a very big story. That is why Donald Trump does not want him to testify. Because Mueller's words will be more important than those of Trump and/or Barr.
No doubt, Robert Mueller understands the gravity and historical significance of his testimony to the Congress. There is a lot of weight upon his shoulders but we will find out if he is willing to carry it. He could go down in history as a profile in courage or he could become just a footnote.
But, if the investigation cleared Donald Trump of collusion and obstruction, then the Mueller team would have said so. They did not. There was a load of evidence showing collusion and obstruction of justice. Bill Barr is not Moses. His conclusion was not written on a stone tablet. If it was indeed true, then Donald Trump would welcome the testimony of Robert Mueller. He would not try to prevent it.
After all, it was Robert Mueller that did the investigation. He knows more about his own investigation than Trump or Barr. The American people are likely to accept his version of events. The PR campaign of Trump will be greatly damaged if Robert Mueller contradicts AG William Barr.
Nothing scares Donald Trump more than the truth.