Does Bill Clinton have Alzheimer's disease?

Ronald Reagan had Alzheimer’s disease and he was a president, but there is no evidence that I know of that Bill Clinton does have Alzheimer’s disease.

One could ask does being the President of the United States stress the brain so much that it puts one at risk of Alzheimer’s, but if that were true, we’d have evidence of more presidents having had Alzheimer’s. From what I know, there isn’t evidence that Bill Clinton does have Alzheimer’s disease.