The CEW Grading RINOs on a Curve theory is related to CEW's same lifetime postulate : thou cannot successfully be a Massachusetts Governor and Republican Presidential Nominee in the same lifetime.
As we all saw.....
Take Back (from Dem incumbent)
Alaska Begich
Arkansas Pryor
Colorado Udall
Louisiana Landrieu
Montana Baucus
North Carolina Hagan
South Dakota - Johnson
West Virginia - Rockefeller
Upgrade (from lesser conservative)
Georgia Chambliss
South Carolina Graham
Tennessee Alexander
Texas Cornyn
Wyoming - Enzi
Your thoughts, edits or additions? With the exception of Colorado (should be GOP), every state went Romney in 2012.