[The Iceman Cometh]

prevent someone like Rubio dumping

You would think this is an outstanding opportunity for Rubio to take Cruz down a couple pegs and get a stronger outcome in Iowa. Considering Cruz has been weak in several of the following states, Rubio could be setting himself up for the 2nd place spot.

[skeeter]

Since Trump seems to pay Rubio very little attention I think the Cabana Boy would be gunning for Cruz regardless of whether Trump participates or not.

Come to think of it I've never hear Rubio say anything about Trump either.