To be fair to Cruz, Rubio’s parents both said they were hoping to return to Cuba, and that is why they did not have US citizenship at the time of his birth.
My guess is that might have raised a question in colonial America. The 14th amendment makes it appear that Rubio is qualified, but NBC status was viewed differently by the Founders.
When you shrink the number, it shifts clearly to the typical Iowa caucus voter, which tends to be on the evangelical side, which as a whole, are clearly for Cruz.
If I'm wrong, I'll eat a handful of raisins. And I hate raisins.
Rubio never had in his hand Cuban citizenship. He was born here. I don’t think that settles anything, but it makes Rubio’s situation very different from Cruz’s.