A federal court in Richmond has ordered that construction of the Mountain Valley Pipeline be suspended.
This has set off a potential battle with Congress, that approved the pipeline, and the case could end up in the Supreme Court.
The U.S. Court of Appeals for the Fourth Circuit ruled to halt the project, which is intended to carry natural gas about 300 miles from the Marcellus shale fields in West Virginia across nearly 1,000 streams and wetlands before ending in Virginia, on environmental grounds.
Congress passed approval of the pipeline as a condition of the det ceiling package.
