Mitt Romney shot back at Newt Gingrich's contention that he's a weak frontrunner Monday on Fox News, saying, "if I'm a weak frontrunner, what does that make Newt Gingrich?"

When asked to respond to the former House speaker's comments Sunday, he said, "It's funny listening to these guys. They're saying what they wish was the case, but happens not to be the case." He continued, "Don't forget Florida, New Hampshire, Michigan, Arizona and many other states. These are places where conservatives were asked after the race who did they vote for, and I won commandingly in those states among conservatives."

"And if I'm a weak frontrunner what does that make Newt Gingrich?" said Romney, laughing, "Because I'm well ahead of him." The audience behind Romney in Mobile, Ala. cheered and applauded his response.

"I'm happy to be solidly ahead. These are good guys. I don't begrudge them that they're out there campaigning and getting some support, but ultimately I believe I'm going to become the nominee and the reason is we want to have someone who can actually beat [President] Barack Obama," he said.

In an appearance on "Fox News Sunday," Gingrich said Romney was the weakest frontrunner since Leonard Wood in 1920, referring to the Army general who lost to Warren G. Harding. "Yes, he's the frontrunner, but he's not a very strong frontrunner, nearly all conservatives are opposed to him," said the former House speaker. "In places where no one else can compete ... he does fine." He added that he thought he would win the primaries Tuesday in Mississippi and Alabama.

Polling in the two states has been inconsistent but points to a close finish between Romney, Gingrich and Rick Santorum.

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