( January 5, 2026, 9:39 AM EST) -- WASHINGTON, D.C. — The latest chapter in the long-running saga of litigation involving Monsanto Co. and plaintiffs who contend that they have been injured by exposure to the herbicide Roundup involves Monsanto’s reliance on the Third Circuit U.S. Court of Appeals preemption ruling in Schaffner v. Monsanto Corp., which Monsanto has made central to its argument in three petitions for a writ of certiorari at the U.S. Supreme Court. The cases are set for conference on Jan. 9....