WASHINGTON, September 5, 2000 — For nearly a quarter-century, almost since the very day of his swearing in as a U.S. senator, Utah Republican Orrin Hatch and others have waged war on the federal Clean Air Act, using virtually any and every weapon at hand. But when Hatch, former White House counsel C. Boyden Gray and Representative Tom Bliley, R-Va., fired their latest shot — a "friend of the court" brief filed in federal court arguing that the law is unconstitutional — they advanced the cause of corporate polluters — and arguably violated congressional ethics rules.