The ad, sponsored by Priorities USA Action, features a former employee at GST Steel who lost his job and health insurance when Bain closed the Kansas-based steel plant in 2001. The man says he doesn't think Romney "understands what he's done to people's lives" by closing the plant.
The ad is the fifth in a series of spots from Priorities targeting Romney's business record, the centerpiece of the presumptive Republican nominee's campaign. The ad is running in five battleground states: Florida, Ohio, Iowa, Virginia and Pennsylvania.
Obama is set to attend fundraisers Tuesday evening in the District of Columbia. Romney is raising campaign money in Illinois.