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"Barack ObamaBarack Hussein ObamaOvernight Energy: Dems ask Pruitt to justify first-class travel | Obama EPA chief says reg rollback won't stand | Ex-adviser expects Trump to eventually rejoin Paris accord Overnight Regulation: Trump to take steps to ban bump stocks | Trump eases rules on insurance sold outside of ObamaCare | FCC to officially rescind net neutrality Thursday | Obama EPA chief: Reg rollback won't stand Ex-US ambassador: Mueller is the one who is tough on Russia MORE says he saved the auto industry. But for who? Ohio or China?" the voice-over in the ad, which has been airing in Ohio, says.

Both the Obama campaign and Chrysler have strongly criticized the ad's assertion. On Tuesday, General Motors joined the Obama campaign in objecting to ad.

"We've clearly entered some parallel universe during these last few days," GM spokesman Greg Martin told The Hill. "No amount of campaign politics at its cynical worst will diminish our record of creating jobs in the U.S. and repatriating profits back to this country."

A recent EPIC-MRA poll sponsored by the Detroit Free Press showed Obama leading Romney in Michigan, 52 percent to 46 percent.