I hope to goodness Obama gets in again, the Republicans are VERY bad news. especially as right wing Christian fundamentalism plays a big part in their politics. The world would be a more dangerous place with that lot in power.
Whilst agreeing with the comment about right-wing fundamentalism (though one could question their self-definition as Christian) my concern about Obama (and every President since I can remember) is that he has been extremely divisive. I believe that the Medicare idea is very important, but every time it has been introduced to the Hill, it has been done in such a way as to allow it to be ridiculed and attacked by its opponents, rather than as a positive and valuable development; reminiscent of the way that the Poll Tax was introduced here in the early 80s, the principle of which (everyone puts something into the pot) was very good.