World swimming federation confirms US federal investigation into Chinese swimmers’ doping tests

Former Olympian Michael Phelps (left), U.S. Anti-Doping Agency CEO Travis Tygart (center) and former Olympian Allison Schmitt are sworn in during a hearing of the House of Representatives Energy and Commerce Subcommittee on Oversight and Investigations examining anti-doping measures in preparation for the 2024 Olympic Games, on Capitol Hill, Tuesday, June 25, 2024, in Washington. (AP Photo/Rod Lamkey, Jr.)