He says so here.
He's been my pick.
John Edwards' focus on poverty is one of the tenets of an Obama administration. I think they'd work well together. People discount him because he's already been vice president and he's already run for president. But I think people have warmed to him. He got a lot of support in the primaries. His wife, Elizabeth, and her focus on healthcare would be an asset to an Obama administration.
Also, no one votes for a candidate based on the vice president, except maybe the Hillaries. What would those PUMA gals do if she was Obama's vice presidential choice? I suspect they'd really be in a tizzy.