A day after Newt Gingrich demanded that Mitt Romney disavow the negative ads coming from a pro-Romney super PAC, Romney essentially told his Republican presidential priimary rival to man up over the criticism, especially if he is running to challenge President Barack Obama in the general election.

" I'm sure I could go out and say 'Hey please don't do anything negative', but, you know, this is politics and if you can't stand the heat in this little kitchen, wait until the Obama Hell's kitchen turns up the heat," Romney said in an interview on FOX and Friends. " This is a time when we have to be able to stand up defend ourselves, i've done the hard work of raising money for ads and the Speaker came after me pretty aggressively with his attacks and we're gonna respond and we've got an ad campaign in my campaign that's positive, but this super PAC that's been organized it has to do what it does on an uncoordinated basis."

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During a Wednesday press avail in Des Moines, IA, Gingrich responded that the Washington Post gave the latest super PAC ad' Four Pinocchios', and again called for Romney to "disown " the attack ads.

The "Restore Our Future" super PAC that which is run in part by Romney supporters unveiled another TV ad Tuesday ,called " Happy", that has already started to air in Iowa markets. 

"Know what makes Barack Obama happy? Newt Gingrich's baggage. Newt has more baggage than the airlines., " The ad's female narrator says. "Freddie Mac helped cause the economic collapse, but Gingrich cashed in." 

The political commercial is part of the $3.1 million buy that the ogranization is using for its ad campaign across the Hawkeye state.

Romney Wednesday kicked off his "Earn it" Bus tour that will make stops across New Hampshire, the first in the nation primary, where the former Massachusetts Governor is ahead in most polls.