Pollster Stanley B. Greenberg was senior advisor to Bill Clinton's presidential campaign and currently works for the Democratic National Committee. He is credited with recognizing, nearly ten years ago, the dissatisfaction among middle class voters with the two political parties. Greenberg has a new book about the historic forces that put Bill Clinton in the White House, and consequently led to 1994's midterm Republican landslide. It's called Middle Class Dreams: The Politics and Power of the New American Majority.