Tax Protester Tells Federal Court That He Is Delusional By DAVID CAY JOHNSTON LOS ANGELES, Feb. 6 - Irwin Schiff, the nation's best-known promoter of claims that no law requires the payment of income taxes, suffers from delusions including a fantasy that he alone can properly interpret the tax laws, according to papers that he had his lawyers file in Federal District Court in Las Vegas. The filing, made on Jan. 23, is highly unusual, especially in a civil lawsuit. The document asks a judge to deny a summary judgment in favor of the Justice Department that Mr. Schiff owes...