(CNN) – Democrats on Tuesday ramped up their pressure on the Romney campaign over two new ads on the auto bailout, as each side sought to sway voters in the crucial battleground state of Ohio.
Spokespeople for Obama's re-election effort pointed to quotes from General Motors and Chrysler executives blasting Mitt Romney over a new round of ads that accuse the auto giants of shifting jobs overseas.
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"The ad is cynical campaign politics at its worst," General Motors spokesman Greg Martin told The New York Times. "We think creating jobs in the U.S. and repatriating profits back in this country should be a source of bipartisan pride."
The Romney radio ad, which aired in Ohio Tuesday, claims GM plans to double the number of cars built in China and that Chrysler plans to start making Jeeps in the same country.
"Mitt Romney: He'll stand up for the auto industry in Ohio, not China," the ad's narrator concludes.
The ad follows a television spot released over the weekend, which makes the same argument and faced wide criticism in recent days for its accuracy.
"Obama took GM and Chrysler into bankruptcy and sold Chrysler to Italians who are going to build Jeeps in China," the television spot's narrator says.
Romney originally floated that idea at a rally in Defiance, Ohio last week. He quoted a report about the majority owner of Chrysler, Fiat, saying it was considering producing its signature Jeep in China.
However, the Bloomberg report to which Romney was apparently referring said that the potential move would only affect cars produced for Chinese consumers.
Chrysler Senior Vice President of Corporate Communications Gualberto Ranieri emphatically denied the possibility U.S. production would be affected, writing in an online posting, "Let's set the record straight: Jeep has no intention of shifting production of its Jeep models out of North America to China."
The ad was rated "Pants on Fire" by the independent, fact-checking group PolitiFact.com. And former President Bill Clinton and Vice President Joe Biden on Monday tag teamed in their attacks against Romney over the ad.
The Romney campaign did not highlight their television ad–or Tuesday's radio ad–with a press release to reporters, as they have with nearly every other spot, but CNN's ad tracker Kantar Media CMAG, spotted the ad running on broadcast television stations in Toledo and Youngstown, Ohio – two Ohio manufacturing strongholds.
Martin, the GM representative, said Romney's ads show that the candidate is "bereft of any fundamental understanding of the global automotive industry.
"All global manufacturers, whether General Motors, Ford, Chrysler or VW, build historically in the markets in which we sell," he continued.
Romney's campaign did not respond to a request for comment.
– CNN's Rachel Streitfel, Gregory Wallace and Shannon Travis contributed to this report.