The way I look at it she made a mistake. Shes 17 and should probably not be having sex (funny how that view changes the older you get, I couldnt imagine saying that when I was 17) and definitely not unprotected sex. But everyone makes mistakes, especially kids. Now she is forced to have the baby and get married to the dude, probably because of her family. The best thing would probably be for her to just get an abortion but that isnt possible when your mother is a conservative politician. Her youth is over and she has to become both a wife and a mother at the age of 17. Add to that the guilt she must be feeling over embarrassing her mother and possibly hurting her chance of becoming VP.
So I really dont think Obama should do anything to hurt the girl, its enough as it is. In my view that would be very wrong. If he did it would effect my view of him in a negative way.