 dementia, Alzheimer's. I mean, what characteristics does Joe Biden embody of prior patients that you've diagnosed? I know that's a difficult question. Yeah, it's something I've avoided, like assigning a diagnosis to him, you know, because, you know, I am a physician and we try not to do that. But, you know, you don't need to be a doctor, Charlie. You certainly don't need to be a physician to the president. You know, I was a physician for three presidents, so I know exactly what it takes mentally and physically to do that job.