Polls In South Dakota: Clinton vs. Obama

I understand that internal polls from the candidates are showing a dead heat here in South Dakota.  If anything, their polls are showing a slight lead for Hillary Clinton.  That may explain why she is spending so much time in the state. Apparently Obama is planning on making a return visit this weekend.  Let's hope he knows which city he's in this time.  One also notes that he has replaced his creepy (in my opinion) "we can change the world ad" with a much more conventional Tom Daschle ad.