Pathetic!
There is NO sub-catagory! The 23% are the total amount of voters, who took part in the Exit Poll Questionare, that identified themselves as "WHITE EVANGELICAL/BORN-AGAIN?", AKA. members of the "Religious Right". I don't see why you're having difficulty grasping the data contained in the exit polling from 2000 and 2004. This is basic stuff.
That's ricidulous. First they ask you if what religion you are and you identify WHICH religion.
And THEN they ask you if you consider yourself to be what is called born-again.
Obviously you've never been polled.
Born-Again is not a cateogry like Protestant, Jewish, Catholics, Other, or None.
All the 23 means is that 23 percent of the people who consider themselves a member of a religion believe themselves to be born-again.
In fact, it's not even the same question:
In 2000, ABC has "Do you consider yourself part of the conservative Christian political movement, also known as the religious right?"
You can consider yourself part of the religious right without being born-again.