I would agree, but I think that term is already taken....I just used some the other day on my essay paper!
My guess is that he is a natural born citizen but his father is not who he claims it to be. It was sensationalized by the media that his father was from Kenya, thus making him a “real african-american”. If his real father were to be made public it would cause more meyhem than him not being eligible for the POTUS.