How does a primary without Christie or Bush proceed?

[Mister Mets]

The early race would probably be Rubio VS one of the guys from Wisconsin for the establishment votes, while Cruz and Paul duke it out for the tea party support.

It would leave more of an opening for John Kasich, or Rob Portman. And if the Mother Jones hit piece is any indication, Susanna Martinez is interested.

It's a crowded field, but I think it's possible for one candidate to run away with the nomination.

There could be a bandwagon effect. A broadly acceptable candidate who gets good buzz will then get higher name recognition which will lead to higher polling numbers which will lead to good buzz. Chris Christie and Jeb Bush might have the resources to compete under those circumstances. A Bobby Jindal stuck in the single digits would not.