WADA has decided to withdraw a defamation lawsuit it filed against the U.S. Anti-Doping Agency (USADA), a turn of events following nearly a year of escalating tensions regarding the agency's handling of doping tests from 23 elite Chinese swimmers. The legal dispute began after USADA's head, Travis T. Tygart, accused WADA of allegedly covering up a significant doping scandal after it was revealed that these swimmers tested positive for a banned heart drug shortly before the Tokyo Olympics.

The relationship between the U.S. and WADA has grown increasingly strained, with the U.S. previously being the largest contributor to WADA’s budget, only to withdraw funding due to doubts about its effectiveness in maintaining clean sports.

In addition to dropping the defamation lawsuit, WADA also abandoned an ethics complaint against Dr. Rahul Gupta, the U.S. representative on WADA's executive board during the Biden administration. Dr. Gupta had been accused of not disclosing his awareness of an ongoing Justice Department investigation regarding the handling of the Chinese swimmers’ tests. He maintains he had no knowledge of such an investigation. USADA declared the decisions a complete vindication, marking a notable retreat for WADA in this complex doping saga.