The 30-second spot, entitled "I believe," alternates images of middle class workers with clips of Mr. Obama delivering speeches, and stresses the president's belief that the economy is grown "from the middle out."
"We're a nation of workers and doers and dreamers. We work hard for what we get. And all we ask for is that our hard work pays off," Mr. Obama says in the spot. "I believe that the way you grow the economy is from the middle out. I believe in fighting for the middle class because if they're prospering all of us will prosper."
"That's the idea of America and that's why America's the greatest nation on earth," he adds.
Striking a noticeably positive note, the ad comes as Mr. Obama continues to fend off criticism about remarks he made earlier this month suggesting that successful business owners have received assistance from the government along the way.