text:  Here is Brit Hume talking about it on Special Report, clip 22. President Biden's capacity or lack of it to serve out another four-year term when he's 81 years old and obviously having senior moments right and left is a real issue. I don't know how much it will actually be discussed in the debate. It will depend, I think, more on whether Biden can pull himself together for a couple of hours and be at his best in the debate.