The Obama campaign's newest ad, airing in nine states, hammers Mitt Romney's economic record as governor and makes the case that if Romney economics didn't work for Massachusetts, it won't work for the nation.

The ad targets the Bay State's weak jobs growth under Romney, when it fell to 47th in the nation and lost 40,000 manufacturing jobs, twice the national average. It also calls out Romney for lowering taxes on the millionaires "like him" while raising fees on everyone else yet adding $2.6 billion to the state's tax burden.

The ad explicitly ties Romney's record in Massachusetts to the 2012 campaign with video clips from both campaigns of Romney claiming his private sector experience as CEO of Bain Capital taught him what it takes to create jobs. That claim was the centerpiece of his 2002 campaign just as it is today. "Remember, we've heard it all before," the ad warns. "Romney economics. It didn't work then, and it won't work now."

The Obama campaign says it is airing in Colorado, Florida, Iowa, North Carolina, New Hampshire, Nevada, Ohio, Pennsylvania, and Virginia.