Question: Was Mueller "acting" as someone who may be in first stages of dementia in order to get another "bite at the apple", so to speak?

Well, Barr suggested that he not testify (perhaps being aware of his condition). This was rejected outright by the dems thinking it to be a political play...which made them froth at the mouth more. It appears as though Mueller was just the token front man on a report that bears his name only. The prosecutors report developed by democrat lawyers was their best shot. Perhaps rank and file democrats were not aware of Mueller's condition...at least I hope they weren't.

Talk about deranged projecting... Can Trump even speak a full sentence without coming off as senile?

Mueller is an honorable man. He's almost 75 and has been under a lot of stress. Give him a break.

The poor conservatives can't dispute the facts that Trump colluded with the Russians during the election and has been working to obstruct justice ever since, so they attack Mueller.

I think he may have had a 'good lunch'.

Good question thanks for asking