New climate summit to show U.S. "back in the driver's seat'

The Biden administration is preparing to host 40 world leaders in a two-day virtual global climate change summit aimed at tackling that threat, overturning President Trump's environmental policies, and reasserting America's leadership on the world stage. The new administrator of the Environmental Protection Agency, Michael Regan, joins Judy Woodruff to discuss the summit, and America's plan.