A friend of mine sent me this link to a news channel in Orlando. EA has one of it's headquarters in Orlando and that is the division responsible for Madden's production. Bush was there to congradulate the employees on their record breaking sales performance.
However video also shows both Jeb Bush, playing for the Phins and "W" playing for the Cowboys. Now I'm not sure if this was just for a demo for the Governor at the PC or if these players are actually hidden characters in the game, maybe something like those old Madden Cards that were in the games.
Either way it's kind of interesting...
http://www.wesh.com/video/4824866/detail.html