How Do I Edit Created Politicians?

All the game's characters like Obama and McCain seem to be in one text file in the "Data" folder.  Where are the created characters?  I can't seem to find them in places where other sources on the internet say they should be.  Can anyone help me?  I want to change their attributes.  If there is an in-game solution to this, do feel free to tell me that as well.  I want to make my created characters better.