A good primer on the Senate race in Hawaii, which will be likely settled by the Democratic Primary in late-September. The octogenarian incumbent, Daniel Akaka, has a liberal voting record (although he did support cloture in the Alito debate), but otherwise has been an undistinguished backbencher, and is being challenged by Representative Ed Case, who is running to the right of the incumbent, particularly regarding the Iraq War. Hawaii has a Republican governor who's a near-lock to win reelection, so she would appoint a successor should Akaka die in office. Unlike the more-widely publicized primary in Connecticut, this one's close....