Obama has also put forward, if you look closely at the seal, the latin phrase Vero Possumus, which means (loosely translated) "Yes, we can."
The word makes me think of the abundance of possum road kill up around rural Vero Beach. But that's just me. That doesn't have much to do with politics or anything. It's just word association for me personally. It doesn't sell.
I like the seal below best. Change politics and stop there.
I could see this in ink on someone's bicep. It unforgettable. But Obama's artwork is quite forgettable.