No.
There was a time when I was astonished that he'd run. Then there was a time when I was astonished that a fifth of the Republican voters claimed, to pollsters, that they would support him. Then there was a time when I was astonished that anyone would still support him after that first debate. Then, after I had convinced myself that Republicans must not have watched the first debate, I was astonished that he was still polling above 20 percent after the second debate.
Nothing astonishes me anymore when it comes to trump's supporters. I don't claim to comprehend them, but I know them, at least some of them. None are shy about sharing their opinions when it comes to sports or politics. For reasons that I am not intelligent enough to understand, the Donald, even as he has shown me from the first day of his candidacy that he is manifestly unsuited to the presidency of the United States, appeals to them. Of the three people with whom I discussed politics with today at the club, two of them support trump.
In Iowa at least it seems like many of his supporters last minute swung to Rubio as evident by the entrance/exit poll last night