So, there are reports that Dick Cheney is Barack Obama's ninth cousin once removed. All I can say is: Big Deal. I'm Barack's eighth cousin once removed. When you go back that many generations, it simply isn't significant.
I find my relation to Barack much more interesting, as his mother is my eighth cousin, and we both have the same maiden name. We're both direct descendants from the same guy.
But interesting doesn't make significant. Third cousins, maybe. Fourth cousins, possibly. But much past that, and it just doesn't matter.