Tygart had harbored suspicions about Armstrong for most of his tenure at USADA. A number of former members of Armstrong's
U.S. Postal Service Pro Cycling Team had been caught doping. Having learned about the doping that then ran rampant in the sport, Tygart found it hard to believe that Armstrong was clean. Armstrong filed a suit in U.S. District Court against Tygart and USADA. When dismissing the lawsuit against 'Defendant Travis Tygart and United States Anti-Doping Agency (collectively, "USADA")', U.S. District Judge Sam Sparks wrote, "USADA's conduct raises serious questions about whether its real interest in charging Armstrong is to combat doping, or if it is acting according to less noble motives." Tygart was previously involved in the investigation of
Floyd Landis. After USADA announced that it would strip Armstrong of all his results obtained after August 1, 1998, Tygart stated in an interview with
VeloNation: "He [Armstrong] knows all the evidence as well and he knows the truth, and so the smarter move on his part is to attempt to hide behind baseless accusations of process." == U.S. Helsinki Commission testimony ==