Sen. Barack Obama's effort to define himself in 18 battleground states took a new turn today when he started airing an ad titled "Dignity," which heralds his limited legislative experience as a boon to middle Americans. According to the campaign, "the spot highlights Senator Obama's decision to bypass big money jobs and help lift neighborhoods stung by job loss. The ad illustrates Senator Obama's record of working hard to move people from welfare to work, passing tax cuts for workers, and providing healthcare for children." It airs in Alaska, Colorado, Florida, Georgia, Iowa, Indiana, Michigan, Missouri, Montana, Nevada, New Hampshire, New Mexico, North Carolina, North Dakota, Ohio, Pennsylvania, Wisconsin, and Virginia. It follows a mostly biographical ad that also highlighted his decision to skip job offers on Wall Street to move instead to Chicago, where he became a community organizer.