NYT: In a newly unveiled campaign ad, the Democratic Senate candidate and current West Virginia governor, Joe Manchin, picks up a rifle and fires a bullet into a target labeled “Cap and Trade Bill.” Given that cap-and-trade legislation died months ago in the Senate, some proponents of cap-and-trade see this a low blow. The bill was abandoned without a vote after many Democrats indicated they would join a united Republican caucus in filibustering the legislation. Meanwhile, anticipated …