The Washington Post. Former Massachusetts Governor Mitt Romney continues to ignore rivals and draw sharp Obama contrast.

Mitt Romney returned to South Carolina on Tuesday and continued his strategy of ignoring his rivals for the Republican presidential nomination while drawing a sharp contrast only with The US President Obama.

Addressing about 150 supporters on the floor of a commercial sign factory here, Romney cast himself as a champion of the "entrepreneurial and innovative spirit of the American people."

"Our problem is not that the private sector isn't productive enough," Romney said. "The problem is that the government sector is too heavy and too burdensome and is keeping the private sector from growing and thriving like it should."