The Trump administration has rolled back 60 environmental policies at last count. ProPublica reporter Talia Buford dug into the overturning of one of EPA rules that took the agency a decade to craft and the Trump administration just months to undo. The rule was meant to keep toxic waste out of rivers and streams. Now it's in limbo as the EPA has decided to open it back up for review. The story of what happened with this rule is a case study in how the EPA operates under the Trump administration.