The Sixth Circuit granted the Commonwealth of Kentucky's and business groups' motions to preliminarily enjoin EPA's and the Army Corps of Engineers' 2023 rule revising the definition of "waters of the United States" under the CWA. A district court had denied the motions, concluding plaintiffs lacked...

The Ninth Circuit affirmed summary judgment for the U.S. government in a challenge to President Obama's issuance of a proclamation expanding the Cascade-Siskiyou National Monument in southwestern Oregon. A timber company argued the proclamation was an invalid exercise of the Antiquities Act because ...