Howard Dean, the outgoing chairman of the Democratic National Committee, sent a letter to Democrats today saying farewell and thanking them for helping reshape the political landscape.

He also congratulated Virginia Gov. Tim Kaine for getting the appointment as the new chairman.

"I can assure you that Governor Kaine will continue the grassroots approach that has made our party and Barack Obama's campaign so successful," Dean wrote. "Governor Kaine knows first-hand what a commitment...