Absolutely. So many people living in solid red states don't seem to grasp this but it is what it is. By dissing Scott Brown a while back, Sarah Palin probably did more to help him than many of her supporters understand.
Yep. Lots of long-time RINOs are, indeed, liberal plants, as is being exposed. But the issue of getting elected in true-blue states is something else. We need to be able to differentiate the two—even though the latter has often been used as a cover for the former.