Don't know about Iowa, but the Cruz org. here in South Carolina is pretty strong. I was surprised by a knock at the door a few days ago. It was a Ted Cruz supporter canvassing the neighborhood - the only canvasser to date. (Just imagine the conversation we had.)-RW
He said they were determined to give Cruz a good showing in the state and, judging by this fellow's polished pitch, I believe Cruz will be up by the time the GOP primary hits on February 20th.
We live in a rural subdivision some 15 minutes from town. That's some pretty thorough canvassing right there. We usually only get phone calls.