You captured it. Only thing I would add is the intentional squandering of the Tea Party/Conservative resurgence in 2010.
Yep, the Bushes were less involved in 2010, but once again the GOPe, Beltway crowd has squandered the victories won by more conservative activists, this time the Tea Party in 2010, and set the party back once again.
They are all a bunch of squatters and wastrels who do nothing but fritter away the victories won by others. And now Boner and McConnel and others (Rove still hanging around) are continuing the 'work' of GHWB, W and Rove, etc.