Texas businessman William Moore Jr. has spent nearly two decades trying to reclaim his reputation after the government unsuccessfully charged him in a conspiracy to win a multimillion-dollar government contract.

Moore is suing a group of U.S. Postal Service inspectors for their roles in the botched fraud prosecution in Washington federal district court in the late 1980s. His claims of malicious prosecution and retaliation have kicked around since 1992 in trial and appellate courts, even reaching the U.S. Supreme Court. The sides have quarreled over a range of legal aspects of the case, including immunity and evidentiary disputes. He kept winning along the way.