Also, regarding the freeper arguement that we should only go after RINOs in GOP-controlled states (which I disagree with anyway)... according to that list, the ONLY GOP seat up for re-election in an “Obama state” is Grassley of Iowa. That means it should be just as big a priority to take out Murkowski, Shelby, and Thune, all of whom have conservative ratings on par with Bennett (or worse than him).
Thune is unopposed and the Democrats aren’t fielding a candidate against him because of his popularity in South Dakota and so the Dem-rats are spending their money elsewhere.