
    VALERO ENERGY CORPORATION, et al., Petitioners, v. ENVIRONMENTAL PROTECTION AGENCY; and
    Valero Energy Corporation, et al., Petitioners, v. Environmental Protection Agency.
    No. 19-835.
    Supreme Court of the United States.
    May 18, 2020
    Motion of National Association of Home Builders of the United States for leave to file a brief as amicus curiae granted. Petition for writ of certiorari to the United States Court of Appeals for the District of Columbia Circuit denied.
     