FILE - Poland's Sports Minister Witold Banka speaks during an interview March 18, 2019, in Warsaw, Poland. A bipartisan group of U.S. senators sent a letter Wednesday, May 22, 2024, to Banka, now the leader of the World Anti-Doping Agency, asking about the case in which 23 Chinese swimmers were cleared to compete at the Tokyo Olympics despite positive tests for a banned drug. (AP Photo/Czarek Sokolowski, File)