Former Maryland governor Martin O'Malley probably can't win the Democratic presidential nomination in 2016. But he can make things very uncomfortable for Hillary Clinton. Of late, he seems very committed to doing just that. The latest gambit by O'Malley came Wednesday when he sent an e-mail to supporters pledging his opposition to the Trans-Pacific Partnership. "To me, opposing bad trade deals like TPP is just common sense," O'Malley wrote. "American workers whose jobs could be on the line right now are owed more than lip service. They deserve to know where leaders stand."