The first U.S. Courthouse and Post Office in Las Vegas – now The Mob Museum – opened in 1933. The most famous hearing ever held in the second-floor courtroom occurred on November 15, 1950, when a committee led by Tennessee Senator Estes Kefauver interviewed several witnesses about organized crime involvement in the Las Vegas casino industry. Mob affiliates Moe Sedway, Wilbur Clark and Lieutenant Governor Cliff Jones were among those questioned. The courtroom has been restored to look as it did when Kefauver’s committee met here.