The GOP primary hasn't officially ended, but President Obama is already starting to kick his general election campaign into high gear, as is presumed Republican nominee Mitt Romney. Obama's lead is consistent, according to 13 national polls from the last month, though it is relatively slight. More significantly, perhaps, is the president's lead in 12 swing states. He's up 51 percent to 42 percent in Colorado, Iowa, New Mexico, Nevada, Wisconsin, Michigan, Ohio, Pennsylvania, Florida, Virginia, North Carolina, and New Hampshire.
