Justice Department sues Minnesota over climate lawsuit it says crosses the federal line
The Justice Department filed a complaint against Minnesota on May 4, 2026, saying the state’s climate case attempts to regulate global greenhouse-gas emissions and step into an area the federal government says is reserved to Washington. In the department’s view, Minnesota’s lawsuit is preempted by federal law and the Constitution and would burden domestic energy development while interfering with the government’s push to keep energy affordable and reliable. ([justice.gov](https://www.justice.gov/opa/pr/justice-department-files-complaint-against-minnesota-over-its-attempt-override-federal-law))
The filing asks a federal court to block enforcement of Minnesota’s state-court action against energy companies. DOJ said the complaint landed the same day a state-court stay in Minnesota dissolved, and it framed the move as part of President Donald Trump’s order directing the department to protect American energy from state overreach. The department also pointed to similar complaints it filed in 2025 against Hawaii, Michigan, New York and Vermont over state climate actions it said were unconstitutional. ([justice.gov](https://www.justice.gov/opa/pr/justice-department-files-complaint-against-minnesota-over-its-attempt-override-federal-law))
The legal fight is narrower than the rhetoric around it. DOJ is making a federal-preemption argument and asking a judge to shut down one state case; Minnesota is still free to defend its theory in court. What is clear is the timing: this is not just a broad policy warning, but a specific federal complaint filed on May 4, 2026, after the state stay ended. ([justice.gov](https://www.justice.gov/opa/pr/justice-department-files-complaint-against-minnesota-over-its-attempt-override-federal-law))
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