Alright, I didn't specifically "know" Obama and Cheney are blood related, but I'm not shocked or surprised that they are. The people in power like to keep themselves in the loop, no matter who's "visibly" in charge.
Like Conspirasist said, Good find Bill.
PS: It does make you think though, we're probably all like 1000th cousins or something, dating way back to the caveman days, or even earlier
.