T. Boone Pickens savaged John Kerry four years ago by financing the "swift boat" commercials that helped sink Kerry's presidential campaign. But House Speaker Nancy Pelosi has invited the life-long Republican to address the Democratic caucus tonight. Senate Majority Leader Harry Reid calls him "my political friend." Pickens made a fortune in oil and gas, but he's become the unlikely champion of an alternative source of energy. Juliet Eilperin is environmental reporter for the Washington Post.