States Sue Trump Over Climate Rule Repeal
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- 23 states and 17 cities filed a lawsuit in the US Court of Appeals to overturn the Trump administration's repeal of the 2009 endangerment finding, arguing it violates the Clean Air Act.
- Trump administration repealed the 2009 endangerment finding, which had served as the scientific and legal foundation for federal regulations limiting greenhouse gas emissions from cars and power plants.
- Environmental organizations filed a separate but similar lawsuit challenging the repeal, amplifying legal pressure on the administration’s climate rollback.
- Donald Trump publicly celebrated the repeal as a victory over Democratic 'radical' energy policies, framing it as a win for deregulation and fossil fuel interests.
- New York City, Los Angeles, San Francisco, Boston, Chicago, and the Pennsylvania Department of Environmental Protection are among the local and state entities joining the legal challenge.
Why it matters: The repeal removes a core legal justification for federal climate rules, weakening national emissions limits. With 23 states and major cities suing, the outcome will determine whether states can force the federal government to maintain climate protections, affecting regulatory power and environmental policy for years.
