Yes, I saw that, and what that tells me is that there's plenty of room for a conservative to win, even if you buy the theory (which I don't) that a true conservative running against Brown would have a tighter race. I don't agree with that because the right conservative (of which Pierce is one) can get the conservative and center-right base out and overwhen the left and center-left.
If Bill Pierce were to win the primary, the surprise and ensuing free publicity could give him the momentum to win in November, like it did in 1992 with an underfinanced, little-known legislator named Russell Feingold.
Upsets do still happen.