Newt Gingrich on Monday offered a blistering rebuttal to Mitt Romney's critique of his $2.50 per-gallon gas plan, suggesting Romney was "rich enough" to be unconcerned with rising gas prices.

"Well, look, if you're Mitt Romney and you're rich enough, maybe you don't get it," Gingrich said on Fox News.

Romney had said Sunday, while campaigning in Georgia, that Gingrich's plan — which the former Speaker said would drive down gas prices by opening up additional federal and offshore lands to oil drilling — was a "pander." But Gingrich sharply contested that critique, saying he would happily debate Romney on rising fuel prices.