Someone can still mount an independent campaign against him (perhaps even a Republican as a write-in), so he has a motive to keep this case going past the November election, which is why I think he wants to push the trial into 2007.
Since this is a county race, why can't someone mount a last-minute campaign against him, since the voting population is so small? That person could leverage mounting disgust if it appears that the case is becoming politically motivated and that the defendants have alibis.
-PJ
If Freda Black could not beat Nifong, no write in candidate could, barring an end to the lacrosse persectuion. His local power base is too strong.