i agree that the idea of rubio folding right now is lunacy (why is that idea even out there?). bookmakers still have him as the second most likely pub.
on the other hand, things are going to have to start changing soon. pubs better hope that events (and donors) can cull at least one of kasich, bush or rubio by the end of south carolina and nevada. we're down to five, the sooner they can get to three, the better. it's gotta be a little scary for the establishment candidates that cruz got something like 11% in nh even with trump carrying the state easily and cruz scarcely making an effort.