"I think it's pretty obvious which candidates have not necessarily been as consistent in the past as I am," he said.
The posture taken by Cain and Santorum contrasted with the more low-key approach by rival Tim Pawlenty. The former Minnesota governor appeared poised to go on the offensive when he coined the phrase "Obamneycare" in a nationally televised interview Sunday, in which he linked President Obama's health care plan with the Massachusetts program spearheaded by his front-running rival, Mitt Romney. But Pawlenty dialed it back in a visit Monday to a company that makes prosthetic limbs.
"The object isn't to stir some internal rift in the Republican party," Pawlenty said. "The focus should be to get Barack Obama out of the White House."
Asked if he would trot out "Obamneycare" in the debate, Pawlenty said, "Probably not."