Environmentalists are pressing Congress to restore federal agencies’ broad authority to regulate wetlands after it took a beating at the Supreme Court last week—but attorneys say a legislative remedy will be significantly challenging in a divided Congress. 

The high court ruled in Sackett v. EPA that the Environmental Protection Agency and the U.S. Army Corps of Engineers had overreached their regulatory authority over wetlands. The decision overturned a lower court ruling that an Idaho landowners’ property was subject to regulation under the Clean Water Act.