Power Line on yesterday's Lincoln/Halter/Morrison vote:

The worst news for Dems may have been the fact that neither Blanche Lincoln nor Bill Halter was able to win the Senate nomination in Arkansas. Instead, the two will participate in a run-off. That's due in part to third candidate D.C. Morrison, whose strong showing (about 14 percent of the vote) suggests that neither Lincoln nor Halter is a very strong candidate.
The run-off will probably weaken whichever candidate survives it. And at the end of the day, the Dems will be stuck with either an unpopular incumbent who squeaked through or a candidate who can probably be painted as too far left for Arkansas.