Barack Obama just set the bar too high. Nobody will ever find a candidate that can match him. McDonnell was purged. Christie was attacked by first his own and then the media. Those two could have been great. Rubio is as dull as Pawlenty and Walker though being Cuban is a major help in electoral ability - still no BHO, and may fall yet. Susana Martinez seems smart enough not to get involved and Paul Ryan knows it's best to operate behind the scenes (perhaps hope for him way down the road a la FDR)
Jindal is pretending to be something he's not and is 4 years too late.
I agree with most of that, but Christie was never going anywhere.
