Former US Olympian Michael Phelps testifies before a House Oversight and Investigations Subcommittee hearing on anti-doping measures ahead of the 2024 Paris Olympics on Capitol Hill in Washington, DC, June 25, 2024. (Photo by Jim WATSON / AFP) (Photo by JIM WATSON/AFP via Getty Images)

Former US Olympian Michael Phelps looks on as he testifies before a House Oversight and Investigations Subcommittee hearing on anti-doping measures ahead of the 2024 Paris Olympics on Capitol Hill in Washington, DC, June 25, 2024. (Photo by Jim WATSON / AFP) (Photo by JIM WATSON/AFP via Getty Images)

US Anti-Doping Agency CEO Travis Tygart testifies before a House Oversight and Investigations Subcommittee hearing on anti-doping measures ahead of the 2024 Paris Olympics on Capitol Hill in Washington, DC, June 25, 2024. (Photo by Jim WATSON / AFP) (Photo by JIM WATSON/AFP via Getty Images)

Former US Olympians Michael Phelps (L) and Allison Schmitt (R) and US Anti-Doping Agency CEO Travis Tygart testify before a House Oversight and Investigations Subcommittee hearing on anti-doping measures ahead of the 2024 Paris Olympics on Capitol Hill in Washington, DC, June 25, 2024. (Photo by Jim WATSON / AFP) (Photo by JIM WATSON/AFP via Getty Images)

Committee Chairman US Rep. Morgan Griffith (R-VA) speaks during a House Oversight and Investigations Subcommittee hearing on anti-doping measures ahead of the 2024 Paris Olympics on Capitol Hill in Washington, DC, June 25, 2024. (Photo by Jim WATSON / AFP) (Photo by JIM WATSON/AFP via Getty Images)

Former US Olympian Michael Phelps testifies before a House Oversight and Investigations Subcommittee hearing on anti-doping measures ahead of the 2024 Paris Olympics on Capitol Hill in Washington, DC, June 25, 2024. (Photo by Jim WATSON / AFP) (Photo by JIM WATSON/AFP via Getty Images)

The empty seat of Witold Banka, President of the World Anti-Doping Agency, is seen next to former US Olympians Michael Phelps (L) and Allison Schmitt (R) and US Anti-Doping Agency CEO Travis Tygart (C) during a House Oversight and Investigations Subcommittee hearing on anti-doping measures ahead of the 2024 Paris Olympics on Capitol Hill in Washington, DC, June 25, 2024. (Photo by Jim WATSON / AFP) (Photo by JIM WATSON/AFP via Getty Images)

The empty seat of Witold Banka, President of the World Anti-Doping Agency, is seen next to former US Olympians Michael Phelps (L) and Allison Schmitt (R) and US Anti-Doping Agency CEO Travis Tygart (C) during a House Oversight and Investigations Subcommittee hearing on anti-doping measures ahead of the 2024 Paris Olympics on Capitol Hill in Washington, DC, June 25, 2024. (Photo by Jim WATSON / AFP) (Photo by JIM WATSON/AFP via Getty Images)