High Court Rejects Border Wall Case That Challenged Agency Power

The Supreme Court won’t review an environmental case that could have had big implications for both the U.S.-Mexico border wall and a major legal doctrine affecting federal agencies.

The justices on Monday denied a petition for review from the Center for Biological Diversity and other groups who say the federal government’s practice of waiving environmental statutes and other laws for border wall construction is unconstitutional.

The case could have given the justices a new opportunity to address the nondelegation doctrine, a long dormant principle barring Congress from giving agencies lawmaking authority.

Conservative lawyers have repeatedly pushed the Supreme Court to ...