Obama goes on air in Rhode Island, Vermont

Barack Obama is joining Hillary Clinton on the airwaves in Rhode Island, and is also airing TV ads in Vermont.

His campaign announced that the first ad in Rhode Island started airing tonight, and it tells about his mother, who died of cancer.

"In those last, painful months, she was more worried about paying her medical bills than getting well," the Illinois senator says in the ad (watch it here). "I hear stories like her’s everyday. For 20, Washington's talked about healthcare reform -- and reformed nothing. I’ve got a plan to cut costs and cover everyone. But unless we stop the bickering and the lobbyists, we’ll be in the same place 20 years from now."

Saturday, an ad starts that highlights his biography, and another starts Monday that urges voters to join his movement.

"We want an end to this war and we want diplomacy and peace," Obama says in the ad (watch it here). "Not only can we save the environment, we can create jobs and opportunity. We’re tired of fear; we’re tired of division. We want something new. We want to turn the page. The world as it is, is not the world as it has to be."

Two other ads are launching in Vermont tonight and Saturday.

The two New England states vote on March 4, along with the bigger states of Ohio and Texas.