I'm not going to get into my political views on this site, and not being American I'm not even eligible to vote for him. However, from what I've seen of the guy, Barack Obama seems like a decent chap.
If you're a fan of the junior US Senator then this wallpaper will help you get behind his campaign to be the Democratic candidate at the forthcoming US elections. It's a pretty formal background so don't expect anything raunchy.
Nevertheless, it's very smart and is divided into two halves - one with his campaign logo and the other with a picture of the politician looking all dapper. The image quality is good and the resolution is high enough for it to be displayed full screen at 800x600.
If you want to show your political colours on your desktop and are a fan of Obama then this wallpaper provides the perfect way to reveal which way you're swinging.