The federal government is the nation's largest landowner, managing 500 million acres under the Department of the Interior. And while some expect that America's public lands are managed for the benefit and enjoyment of the people, others say the Trump administration has allowed interests like energy development to lead land policy.

Trump's first interior secretary, Ryan Zinke, literally rode into Washington on a horse a couple of years ago promising to be a land steward in the style of President Theodore Roosevelt. More recently, he signed his resignation letter in a now infamous, barely legible, chunky red pen. On this episode, we take stock of Zinke's legacy and what it means for the country's public lands. Our guest is Collin O'Mara, president of the National Wildlife Federation. He wrote a recent opinion piece about Zinke in the Washington Post.