The GOP pack is trying to stop Mitt Romney before it's too late.
"Mitt, we need you to release your income tax so the people in this country can see how you made your money," said Rick Perry.
At last night's debate in South Carolina, they ganged up on the frontrunner, slamming everything from his business background to his refusal to release his tax returns.
"What's happened in history is that people have released them in April of the coming year and that's probably what I'll do," Mitt Romney said.
Romney's record at equity firm Bain Capital came under attack once again.
"There was a pattern in some companies, a handful of them, of leaving them with enormous debt," said Newt Gingrich. "I think he needs to answer to that."
"Four of the companies we invested in ended up having today 120,000 jobs," Romney said.
Romney still holds a dominant lead in South Carolina and across the nation. A new poll out Tuesday morning shows most republicans believe he'll clinch the GOP nomination.
"If you're exposing a negative voting record, I think it's proper."
Ron Paul defended his use of negative ads, while Rick Santorum blasted Romney supporters for using them.
"If I had something that the super PAC that was supporting me was inaccurate then I would say stop it!" Santorum said.
But Romney insists he has no control over those groups.
"I can't call these people and direct them to do that as you know because that would violate federal law."
"He apparently has no influence, which makes you wonder how much influence he would have if he were president," Gingrich said.
The fireworks aren't expected to die down anytime soon. The GOP contenders face off again on Thursday.