I don't think Obama is a Natural Born Citizen because I don't think he was born in the US at all.
His grandmother has said, more than once, that she was there for his birth, NOT in the US, but in KENYA. People just choose to ignore that little tidbit coming from his own flesh and blood.
Sorry but that is so bogus. Her words were mistranslated. They corrected the interviewer over and over.
Here is the first part of that interview.
Start at 4:25. What they don't do is continue the conversation. Usually happens when someone tells people what they only want you to hear. Here is the continuance of the conversation.
MCRAE: Could I ask her about his actual birthplace? I would like to see his birthplace when I come to Kenya in December. Was she present when he was born in Kenya?
OGOMBE: Yes. She says, yes, she was, she was present when Obama was born.
MCRAE: When I come in December. I would like to come by the place, the hospital, where he was born. Could you tell me where he was born? Was he born in Mombasa?
OGOMBE: No, Obama was not born in Mombasa. He was born in America.
MCRAE: Whereabouts was he born? I thought he was born in Kenya.
OGOMBE: No, he was born in America, not in Mombasa.
MCRAE: Do you know where he was born? I thought he was born in Kenya. I was going to go by and see where he was born.
OGOMBE: Hawaii. Hawaii. Sir, she says he was born in Hawaii. In the state of Hawaii, where his father was also learning, there. The state of Hawaii.