Over the past three decades in the United States, the wealth gap between the richest Americans and everyone else has reached new extremes. At the same time, labor union membership has drastically decreased. In his book What Unions No Longer Do, sociologist Jake Rosenfeld argues that you can't understand one trend without the other. Rosenfeld shares ideas from his book and considers what so-called "Right to Work" legislation may mean for the future of organized labor.