Yes, he/she/it can. It's one of his/her/its main ingredients of physical makeup.
Obama is a puppet, just like all the other presidents. 
Precisely! Most of our representatives are bought off, and our politicians have a more right-wing ideology than the people they represent (on average, that's what I read somewhere). They are the puppets of corporations.
I don't think the Obama administration has done any worst than the last few administrations, it hasnt done much better, ether (we have to keep in mind that there
has been a recovery during it). He's a lackluster leader, and it has nothing to do with the color of his skin. The "Obama fuck-up", whatever it might be (there's tons of
real criticism to his administration, there are a few fake scandals [death panels, for example]), had nothing to do with his ethnicity.