Rick Santorum and Mitt Romney had a heated exchange over negative ads. Santorum said Romney’s super PAC put out an ad that claimed the ex-senator was in favor of allowing felons to vote. In fact, Santorum voted for a measure that would have allowed felons who had completed their sentences and probation requirements to vote. Santorum asked Romney if he would support allowing such felons to vote. When Romney hedged around the question, Santorum said he wanted “an answer to the question first.” To which Romney responded, “We have time, I’ll get there. I’ll do it in the order I wanna do.” He then launched into a discussion of super PACS, but did not answer Santorum’s question.