From here in China our American system sure seems distant, but unless I am misreading things people here are much more intrigued with Obama than other candidates. Of course that could also be said of the USA, where Obama´s appeal is as much about his speaking style and personal history as policies or other factors.
Realclearpolitics.com summary of polls still suggests a Clinton win in Pennsylvania, making the Democratic Primary about as close as it can get moving into the Convention.
