She was a conservative Democrat and in Texas at that time there weren't too many Repub.
Actually, I didn't begin to become a conservative until I was in my late 20's, but your point is well taken. If a person is in their 40's and still supporting Democratic candidates, it's pretty hard to believe that she is suddenly a rock-ribbed conservative (short of a dramatic life-changing event).
My main concern is her judicial philosophy: is she going to be an originalist, or a consensus builder as she is characterized by president of the Dallas Bar Association, Tim Mountz? Wasn't this the one of the main problems with Sandra Day O'Conner?
Took me 29 years.