AG Files Amicus Brief in Colorado Energy Case - Articles

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Posted by: Stacey Shrader Joslin on May 28, 2026

Tennessee has filed an amicus brief in the U.S. Supreme Court challenging an effort by Colorado local governments to wield Colorado state tort law to control energy policy nationwide. Attorney General (AG) Jonathan Skrmetti announced that the case, Suncor Energy (U.S.A.) Inc. v. County Commissioners of Boulder County, raises significant constitutional questions about the authority of a single state to regulate conduct occurring entirely in other states. In the brief, Tennessee argues that the Constitution protects each state’s territorial sovereignty and prohibits one state from imposing its policy preferences beyond its own borders. Tennessee warns that allowing Boulder’s lawsuit to proceed would permit individual states to effectively dictate national energy and environmental policy for the entire country. Read more in a news release.