“A half-white, half-black man...
Correction: half-Arab, half white.”
Kenyans are Arabs???
long, but might answer your question:
http://kennethelamb.blogspot.com/2008/02/barak-obama-questions-about-ethnic.html
Kenya is next to Somalia, so there are lots of Arabs there, just as we have lots of Mexicans.
It appears there were Arab settlements by at least AD 700.
Obama’s daddy is a Luo. This “half Arab” rumor is popular among the extra chromosome crowd.