Presumptive Democratic presidential nominee Barack Obama will begin airing a new ad in New Hampshire tomorrow. The 30-second ad, titled "Hands," focuses on Obama's energy plan and touts alternative resources as a way to "build a new economy."

"The hands that built this nation can build a new economy," the announcer says. "The hands that harvest crops can also harvest the wind. The hands that install roofs, can also install solar panels."

The ad will also air in all 50 states and on cable television during the Olympics.

View the ad here: "Hands"