The reelection campaign’s latest contrast spot keeps up the attack on outsourcing and Bain Capital. “What a president believes matters,” a male narrator says earnestly. “Mitt Romney’s companies were pioneers in outsourcing U.S. jobs to low-wage countries. He supports tax breaks for companies that ship jobs overseas. President Obama believes in insourcing. He fought to save the U.S. auto industry and favors tax cuts for companies that bring jobs home. Outsourcing versus insourcing. It matters.” The 30-second commercial, called “Believes,” will air in Colorado, Florida, Iowa, North Carolina, New Hampshire, Nevada, Ohio, Pennsylvania and Virginia.