This is what I expected as an answer.

What is type 2 dementia? Do you mean type 2 diabetes

I’d say terrible dementia……type II.

How so? What symptoms does he display? Severe cognitive impairment (SCI) is a state where a person's cognitive abilities are so impaired that they can limit their ability to function, usually in social or occupational settings. It's also known as DEMENTIA.

Some of you say he has dementia. What type? My dad has dementia and I knew what type he had based on his symptoms before the neurologist confirmed it. He has vascular. What type does Biden have in your opinion?