Scott Rasmussen and his Rasmussen Reports released their most recent polling on the 2006 Iowa governor's race. Here's the breakdown:
Chet Culver 41 - Jim Nussle 38
Jim Nussle 39 - Mike Blouin 36
Jim Nussle 40 - Patty Judge 37
Margin of error: +/-4.5%
So, what do the results mean? Clearly, among the three Democrats polled, Culver has the strongest electability of any of the Democrats in the field. Furthermore, I think it's pretty clear that Nussle is really beatable. All of the results were within the margin of error.