Everything is about to get really bad. Actually it already is. A good portion of America is jobless. They have every right to be upset and this ad can connect with that.
The general public can be and is politically interested.
I disagree, I see so many people around avoiding politics like the plague. I will say though it depends on the group, there is no one commercial that would work for all, but I would just try and hit things as big as possible.
Anyways, if you want to get very serious with your ad, might I suggest using Google TV Ads, cheaper, better targeting (might as well find the best audience for your ad if it is listed), ease of use of course
http://www.google.com/ads/tv/