He is by default, black. That is what the left based their decision on. The leftist media came out directly during the 2008 campaign and said that we must, as a nation, vote for Obama to show the world we are not a racist nation. Perhaps you forgot that.
Either I forgot, or I simply don't read many talking heads. The "leftist media", referring to front page news, said nothing of the sort about who to vote for. But as I recall the election statistics, "blacks" typically vote 95% democrat, but in 2008 they voted 98% democrat. 3%. Of "black" voters, who are what, 14% of the US population?
No, I did not vote for Obama, but I do recall posting here that both of my brothers did in 2008, but not in 2012.