"The 'American exceptionalism' that I grew up with, the 'American exceptionalism' of the Cold War…I do think has outlived its usefulness." Those words coming from Anne-Marie Slaughter, a former top State Department official under President Obama, indicate how much the world has changed in the past few decades. Her conversation with Ian Bremmer is part of the latest episode of GZERO World.

Watch the episode: How a "President Biden" could reshape US foreign policy