Presidents have extraordinary control over climate policy, in part, because it’s been decades since Congress has passed a comprehensive environmental bill.

© Tierney L. Cross for The New York Times

Presidents have extraordinary control over climate policy, in part, because it’s been decades since Congress has passed a comprehensive environmental bill.

© Tierney L. Cross for The New York Times

When it comes to weeding out corporate influence, Robert F. Kennedy Jr.’s ideas often align best with some of Trump’s loudest critics.

© Al Drago for The New York Times