PITTSBURGH (Reuters) - Democratic presidential candidate Barack Obama spent a fourth day on Monday defending himself for calling people in small towns with economic blight "bitter" in a controversy that rival Hillary Clinton is trying to use for a comeback.
links
- Obama defends "bitter" remarks as McCain attacks (http://feeds.reuters.com/~r/Reuters/PoliticsNews/~ 3/269692829/idUSN1116676020080414)

