The "grandmother" who counts and who was purportedly present when he was born in Kenya is not his grandmother at all but was one of the other wives of his father. It is her that the campaign has made off limits for the obvious reason that she knows facts that the campaign does not want revealed.
No, Madelyn Dunham is 85 and living in Honolulu, reportedly in the same apartment high-rise building where she raised Obama from age 11 to 18. She has kept totally out of the campaign limelight and refused virtually all interview requests, whether by her preference or not.... certainly the Obama campaign has been determined to run him entirely as a “black” candidate and not as a true bi-racial candidate.
Madelyn Dunham is really the only grandma he ever knew, but the campaign has trotted out a bogus Kenyan grandmother to fill out his fictional stories.
http://www.usatoday.com/news/politics/election2008/2008-04-07-obamagrandma_N.htm