Unions used to be a major political force in America. But over the last few decades they have steadily declined, and now a Supreme Court case might deal another severe blow to their strength. Professor Jake Rosenfeld explains what the Supreme Court is deciding on and what it means for the future of organized labor in America.

For More on this Topic:

• Read Rosenfeld's SSN brief "Union Decline and Rising U.S. Wage Inequality"
• Check out his book, What Unions No Longer Do
• Find this New York Times opinion piece on the impacts of right-to-work laws