A Detroit unionist just addressed the convention, assuring listeners that Obama will back fair, not free, trade. He's a Teamster -- an interesting choice. The Teamsters, I suppose, are the union that can best convey toughness and grit to the white workers whose votes Obama is seeking. That view of the Teamsters is a stereotype, of course -- but the Obama campaign is in no position to shun stereotypes. --Harold Meyerson
