“If you watch his eyes, there is minimal cognition. He is listening enough to be able to identify the answer he is supposed to give by the Democrats. Also, their way of question can be characterized as “leading”.”
So, the talking points for the MSM will be Republicans are berating an old man?
That puts the Democrats in a conflicting position in that if they accuse the Republicans of “berating an old man”, then they would also have to consider the possibility that Mueller is cognitively compromised and for how long. They could call the entire investigation into question because it was possibly being lead by someone who was not competent.