Sadly, that's not true. Though your grandma looks fantastic!! There are two people close to us in their 60s that are now going through some form of dementia, both of whom were intelligent and held high level jobs.
I am thinking maybe Obama-Grandma has dementia. That is the only reason not to bring her to the hotel for a holiday with his family. With dementia, she might become VERY upset at the new surroundings. It might be an act of kindness to keep her where she feels most comfortable.
But he should come out and tell the world about it. So many American families have had to deal with this problem.
I shouldn't even think this but do his kids know his mom was white?
Of course they do. And the kids have seen his grandmother before.