“I do believe when the times comes, it will not be school yard ugly.”
Trump knows no other way than “school yard ugly”, to put down a candidate. He will do it that way if Cruz numbers come close to his. However, I doubt the polls will reflect the work Cruz workers are doing county by county, meaning the actual Cruz voters cannot determined by a poll.
That is what happened in Texas when Cruz ran for Senator. He ran against a wealthy Lt. Governor and the polls showed Cruz losing even the day before the election. The next day, when voters voted, Cruz won handily.
Equating a popular courageous figure such as Trump to Dewhurst is not the best way to manage expectations.
Trump <> Dewhurst
Trump > Dewhurst