 I think that's what tens of millions of Americans are going to be watching for tonight. This is a 90-minute debate. There's only going to be two short interruptions for commercial breaks. That's a pretty long time to be standing up behind a podium, fielding questions, combating with your rival. I think that will be pretty hard at any age, certainly at 81. And so people are going to be looking to see if President Biden is up to the task.