The U.S. Supreme Court on Wednesday handed Michigan’s Democratic Attorney General Dana Nessel a victory, offering a unanimous decision that laid to rest a years-long debate over whether her case to shut down Enbridge’s Line 5 pipeline should be heard in state or federal court. In an 14-page opinion penned by Justice Sonia Sotomayor, the court held that Enbridge had missed its 30-day window to have the case removed to federal court, with the Canadian energy company making its request 887 days after receiving Nessel’s initial complaint. The company’s Line 5 pipeline has been a long-running concern for tribal nations and environmentalists in the region, with Nessel calling it a “ticking time bomb” for the Great Lakes.