Rick Santorum on Monday accused GOP presidential rival Mitt Romney of being more liberal on gay marriage than President Barack Obama. Santorum, a former senator from Pennsylvania, made his remarks during an interview on Laura Ingraham's radio show. When Ingraham asked Romney's stance on a proposed bill that would repeal the Defense of Marriage Act (DOMA), Santorum answered: “I would argue that Mitt Romney, as governor of Massachusetts, was to the left of Barack Obama on the issue of gay marriage.” DOMA is the 1996 law that bars federal agencies and the military from recognizing the legal marriages of gay...