Despite the fact that Puerto Rico is an unincorporated territory of the United States, Rick Santorum has referred to Puerto Rico multiple times as a country.
The relevant quote:
"Obviously Spanish will be spoken here on the island. But this needs to be a bilingual country not just a Spanish speaking country," he said. "Right now it is overwhelmingly Spanish speaking but it needs to have in order for it to integrate into American society, English has to be a language that is spoken here also and spoken universally."