Ted gets out there and walks, talks, presses flesh and connects with people.
If anything, Trump is showing he doesn't have the head for doing the things necessary to win the majority. And yes, you can say those in Iowa that did vote for him did so because of the things he is saying, but that is no guarantee for a win.
That's what everyone whose candidate is behind in the polls says. But this close to the primary if you bet on the polls being right you'll win most of the time.
Cruz won't win in NH. He might even come in third.