May 16, 2018: The Atlantic Coast pipeline suffered a major legal blow last night as a federal court tossed a key Endangered Species Act assessment for the project.The 4th U.S. Circuit Court of Appeals yesterday vacated the Fish and Wildlife Service's review of Atlantic Coast's impacts on threatened and endangered species along its route.The decision could derail construction on the 600-mile Dominion Energy Inc. natural gas project, which stretches from West Virginia to North Carolina.It's the clearest environmental victory yet in a long-running opposition campaign against the project. But Dominion and environmentalists disagree about the ruling's immediate impacts.