Romney on Santorum: 'I wonder which team he was taking it for'

Following sparring with Rick Santorum at a GOP debate on Wednesday, Republican presidential candidate Mitt Romney attacked the former Pennsylvania senator with a slightly suggestive line, wondering "which team he was taking it for."

During the CNN-sponsor debate in Arizona, Santorum had defended his support for the "No Child Left Behind" legislation.

"I have to admit, I voted for that, it was against the principles I believed in, but you know, when you're part of the team, sometimes you take one for the team, for the leader, and I made a mistake," Santorum explained.

By the time Romney addressed a conference of the Associated Builders and Contractors the next morning, he had a response prepared.

"I wonder which team he was taking it for," Romney quipped. “My team is the American people, not the insiders in Washington.”

"I don't know if I've seen a politician explain in so many ways why it was he voted against his principles," the former Massachusetts governor added. "I can tell you one thing: If I am president of the United States, I will abide by my principles, and my team will be the people of the United States of America."

Watch this video from CNN, broadcast Feb. 23, 2012.