In a speech to the U.S. Hispanic Chamber of Commerce in Los Angeles, Mitt Romney dinged President Obama for announcing new trade lawsuits the same day he's campaigning in Ohio — a state whose economy is threatened by China's dominance in the industry, and artificially low currency.

Romney welcomed the action from the Obama administration, but said it was transparent political maneuver that voters would easily see through.

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