 844-500-4242. Does President Biden at 81 have Alzheimer's? Cut 34. KJP. I'm going to ask something delicate, and you may not like it. The president may not like to hear it if he's watching, but I think the American people need to get a yes or no answer on this. Does President Biden at 81 years old have Alzheimer's, any form of dementia or degenerative illness,