Thanks for the comments. You could be right.
It sure sounds like him.
I am curious about his condition. Even if he didn’t want to appear in public, he could get huge publicity by calling reporters or radio shows. The fact that he has not done so is telling. His daughter said two weeks ago that he was doing physical therapy at his desert home in Sedona. No mention of his physical/mental state. As he misses more and more Senate votes, surely more people are going to be asking questions.