Just before 1 AM EDT, the Herseth/Diedrich race is truly down to the wire. Fewer than 40 precincts left to report out of 798; Herseth's lead down to just over 2000 votes (out of about a quarter million), and falling, rapidly. The only bright spot I see is that a quick look at those few remaining precincts seems to show that at least half are in heavily Democratic areas.