Have you noticed that there are no early pictures of Obama with his father, or for that matter, his grandparents. When babies are born everyone wants to take pictures with the baby especially the father but the only baby/toddler pictures of Obama are taken with his mother. Where was Barack Obama senior?
I don’t know why, but I seem to have gotten the impression that he abandoned her before BO was born. The whole situation is slightly icky. Imagine her parents. Their beautiful and smart daughter takes up with a Kenyan who is already married, “marries” him (or not), and has a baby in which the father apparently takes no interest. Then she goes off with some guy from Indonesia. It all sounds very unstable, and surely frightening for a little boy. And at the same time, the mother and the grandparents are apparently convincing him that he is the best thing since sliced bread. But to answer your question, I think Obama senior disappeared when he found out she was expecting.