President Barack Obama has filed a trade complaint against China in hopes that the World Trade Organization will sanction the communist regime for subsidizing exports of vehicles and auto parts.

At a campaign stop in Ohio, the president said China's unfair trade practices are costing Americans jobs. Ohio is a key state where many auto supply companies are based.

"These are subsidies that directly harm working men and women on the assembly lines in Ohio and Michigan and across the Midwest," Obama said. "We are going to stop it. It is not right, it is against the rules, and we will not let it stand."

Obama's trade complaint came after Republican presidential nominee Mitt Romney ran an ad accusing the president of not taking action against China on trade.

"If I'd known all it took to get him to take action was to run an ad citing his inaction on China's cheating, I would have run one long ago," Romney said in response.

Romney also criticized Obama for announcing "new trade cases less than two months from Election Day" and accused him of trying to distract voters from his record as president.

Obama said he's filed more trade suits against China than former President George W. Bush.