Trump Exempted Some of the Nation’s Biggest Polluters From Air Quality Rules. All It Took Was an Email.

White smoke rises from a Freeport-McMoRan copper smelter in eastern Arizona, one of more than 180 facilities granted exemptions to the Clean Air Act by the Trump administration. Roberto “Bear” Guerra for ProPublica In March 2025, President Donald Trump’s administration made a tantalizing offer to coal-fired power plants, chemical...

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