WASHINGTON — Olympic gold medalists including Simone Biles and Aly Raisman on Wednesday detailed for the U.S. Senate Judiciary Committee the failure of the FBI to investigate dozens of complaints of sexual abuse committed by Larry Nassar, the disgraced team doctor for USA Gymnastics and a former Michigan State University physician.

The gymnasts also urged senators to investigate the institutions that enabled the abuse.

Biles, one of the most decorated gymnasts in history,