(The Center Square) − Environmental groups moved almost immediately to challenge the Trump administration’s sweeping exemption of Gulf oil and gas operations from key Endangered Species Act requirements, filing suit Thursday to block the order from taking effect.

The lawsuit, filed by four longtime environmental litigants including Healthy Gulf and the Sierra Club, targets the administration’s claim that endangered-species protections had to give way to national security concerns. The groups say the exemption was rushed through unlawfully and rests on a flimsy justification from Defense Secretary Pete Hegseth.

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