Obama challenges 'conventional thinking'

As part of his three-day swing through New Hampshire this week, Barack Obama is up with a new TV ad in the Granite State, this one showing him issuing a challenge to "conventional thinking." The 30-second spot is the latest in a series of unadorned ads featuring Obama talking soberly about his vision for the country.

"When we break out of the conventional thinking and we start reaching out to friend and foe alike, then I am absolutely confident that we can restore America's leadership in the world," he says. "We're going to lead with our values and our ideals by deed and by example. I want to go before the world and say America's back."

Obama has been spending heavily on TV ads in Iowa and New Hampshire, even running some in the expensive Boston media market. Anyone watching the Red Sox-Indians games has caught some. Obama's campaign is hoping the TV push will boost his poll ratings in New Hampshire, where he trails rival Hillary Clinton.