Rick Santorum is defending his call for English to be the main language in Puerto Rico, saying today it should be a “condition” for statehood.

The question of Puerto Rican statehood — or stipulating a language requirement as a condition — aren’t typically issues that arise in a GOP presidential primary race.

But Puerto Rico will hold a primary Sunday and 20 of 23 delegates will be allocated. A referendum on Puerto Rico’s political status is on the Nov. 6 ballot.

“As in any other state, you have to comply with this and any federal law. And that is that English has to be the main language,” Santorum told El Vocero, a San Juan newspaper. “There are other states with more than one language as is the case in Hawaii, but to be a state in the United States, English has to be the main language.”