Part 2 We have had a president use a wheelchair and my state's governor is in not. No, Biden's issues are generated from a dementia and they can and do develop mobility issues.
As one who has worked with the dementia patients, Biden definitely has some sort of dementia. Trump wasn't as healthy as they let on either nor could he keep his mouth shut and stick to the script. I also feel H. Clinton also had enough issues to have kept her out.