Just a day after Romney went after Mr. Obama for allegedly not cracking down on China's economic "cheating," the president's re-election campaign is rehashing is attempting to cast doubt on his credibility on the subject. "Mitt Romney? Tough on China? Romney's companies were called pioneers in shipping U.S. manufacturing jobs overseas," says a narrator in the thirty-second spot, entitled "The Cheaters," which is set to air on television in nine battleground states.