Obama was nominated for the award around the time of his election. He literally got it for being a black guy voted into the presidency.

The shit he did later obviously negates that, but it's even more asinine that he got it for no reason other than the color of his skin. At least when he was blowing people up later on, one could argue he was killing our enemies (mostly) and we are the international arbiters of peace. When he got nominated for the award he hadn't even done anything yet.