How many superpowers are there in the world?

With the rise of China, Russia and India, U.S. world power is diminished—but still very strong. William Wohlforth, Daniel Webster Professor at Dartmouth College, joins guest host John McCaa to discuss how even with the rise of new world powers he believes the U.S. still controls global politics and economics, and why peer nations still have a long way to go to match American power. His Foreign Affairs article written with Stephen Brooks is “The Myth of Multipolarity.”