NEW : Asked about his comments on Thursday , Santorum told CNN , `` English has to be learned as a language . A pro-Santorum PAC buys $ 310,000 in ad time in Illinois . Santorum says that English should be required for Puerto Rico to become a state . Score: 6 Puerto Rico , next on the campaign trail , has a statehood referendum in November .
NEW : A pro-Santorum PAC buys $ 310,000 in ad time in Illinois . Santorum says that English should be required for Puerto Rico to become a state . Score: 6 Puerto Rico , next on the campaign trail , has a statehood referendum in November .