Mr. Warden has an active litigation practice covering the antitrust, banking, contract, corporate and securities areas. He represented Goldman Sachs in the antitrust litigation and investigations regarding the NASDAQ Stock Market and British Airways in the antitrust case brought by Virgin Atlantic. He now represents Microsoft in U.S. v Microsoft. In addition to civil litigation, he represented Amax in U.S. v Amax, et al, a criminal antitrust case involving the potash industry. Mr. Warden is a Fellow of the American College of Trial Lawyers and a Member of the American Law Institute.