How To Find That Barack Obama Ad In 'Burnout Paradise'
Insert a copy of "Burnout Paradise" into an Xbox 360*
Make sure you're living in a battleground state. (States listed in second paragraph here)
Then drive at the location marked in the map below to see the Obama ad that everyone's talking about.

*This doesn't work in the PlayStation 3 version, which is running a fake ad in Obama's place.