DOJ Sues Minnesota Over State Climate Lawsuit Targeting Energy Companies – Image for illustrative purposes only (Image credits: upload.wikimedia.org)
Minnesota – The U.S. Department of Justice moved swiftly on May 4, 2026, to file a federal lawsuit against the state, aiming to halt a long-dormant climate deception case just as it cleared major appellate hurdles and prepared for discovery.[1][2] This intervention underscores ongoing tensions between federal energy policy priorities and state-level efforts to address climate impacts through consumer protection laws. The action follows the recent dissolution of a stay in Minnesota’s state court proceedings, highlighting the high stakes as the case advances.[2]
Minnesota’s 2020 Lawsuit Takes Aim at Fossil Fuel Practices
In June 2020, Minnesota Attorney General Keith Ellison launched a lawsuit in Hennepin County District Court against several prominent energy organizations and companies.[2] The defendants included the American Petroleum Institute, Exxon Mobil Corporation, ExxonMobil Oil Corporation, Koch Industries, Flint Hills Resources LP, and Flint Hills Resources Pine Bend LLC.
The state alleged violations of Minnesota’s consumer fraud statutes, including the Prevention of Consumer Fraud Act, claims of failure to warn, fraud, misrepresentation, deceptive trade practices, and false statements in advertising.[2] Prosecutors contended that these entities knew about the risks of greenhouse gas emissions from fossil fuels but downplayed them, contributing to climate change harms felt in Minnesota. The suit sought injunctive relief, restitution, and disgorgement of profits tied to the alleged misconduct.
Federal Preemption Claims at the Core of DOJ’s Challenge
The Justice Department’s complaint asserts that Minnesota’s action intrudes on exclusive federal authority over global greenhouse gas emissions regulation.[1][2] Filed in the U.S. District Court for the District of Minnesota, it names the State of Minnesota and Attorney General Ellison as defendants. DOJ argues the suit conflicts with the Clean Air Act’s comprehensive framework, which delegates oversight to the Environmental Protection Agency.
Additional counts invoke constitutional preemption doctrines. The complaint details how the state case implicates uniquely federal interests in interstate pollution, foreign affairs, and commerce, while attempting extraterritorial regulation of out-of-state activities.[2] “President Trump promised to unleash American energy dominance, and Minnesota officials cannot undermine his directive by mandating that their woke climate preferences become the uniform policy of our Nation,” Associate Attorney General Stanley Woodward stated in the department’s announcement.[1]
Principal Deputy Assistant Attorney General Adam Gustafson of the Environment and Natural Resources Division added that the effort invades federal control and threatens economic and national security by burdening domestic energy production.[1]
A Prolonged Path Through Courts
The state lawsuit faced immediate pushback. Defendants removed it to federal court in July 2020, citing federal questions, but a district judge remanded it in March 2021, a decision affirmed by the Eighth Circuit in March 2023.[2] Judge David Stras, in concurrence, noted the case’s aim to influence national energy policy and global corporate behavior exceeded state law bounds.
- June 2023: Defendants file motions to dismiss on preemption, anti-SLAPP, jurisdiction, and other grounds.
- February 2024: State district court denies most dismissals.
- March 2024: Appeals on key issues.
- April 2026: Minnesota Supreme Court denies review; appeals exhausted.
- May 4, 2026: Stay lifts, DOJ files federal complaint same day.[2]
This timeline reflects years of procedural battles, with the federal suit arriving at a pivotal moment.[2]
Part of a Larger Pattern in Climate Litigation
The DOJ action aligns with similar federal challenges against other states pursuing climate-related suits. Last year, complaints targeted Hawaii, Michigan, New York, and Vermont over comparable efforts deemed unconstitutional overreach.[1] These cases often hinge on whether state consumer protection claims can address global emissions without federal interference.
Minnesota officials have dismissed the federal move as a frivolous delay tactic.[3] For details on the DOJ filing, see the official press release and complaint.[1]
As litigation unfolds in federal court, the clash tests boundaries between state accountability measures and national energy strategy. The outcome could influence how states navigate climate enforcement amid federal priorities favoring domestic production.