John Edwards said Americans should give up their SUVs.

At a forum held Tuesday by the International Association of Machinists and Aerospace Workers union, the former North Carolina senator said that Americans should be asked to drive more fuel-efficient cars.

"I think Americans are actually willing to sacrifice," he said.

He said as president he would focus on energy conservation and institute a cap on carbon dioxide emissions. He was asked how he could call for sacrifice while living in a 28,000-squre-foot house.

He replied that he came from nothing and worked hard.

"I have no apologies whatsoever for what I've done with my life," he said. (AP)