Yes, I agree, skeeter. And "blurted" is too strong given that he was answering a question.
But I do feel that his answer/stance was about the worst possible toward an already conservative, spanish-speaking island. They do also speak English...and Puerto Rico isn't exactly in the mainland heartland.
I'm sure the interviewer had that in mind when he/she asked the question.
But I'm not sure thats true. After all, he simply said english should be the official langauge if the territory decides it wants statehood. Not exactly a controversial position historically. In today's political environment perhaps, but today's environment is insane. I won't hold that against Santorum.