Valeri Liukin, who became the women’s national team coordinator in 2016, stepped down in February 2018. He said, “The present climate causes me, and more importantly my family, far too much stress, difficulty and uncertainty.”

Rhonda Faehn, a senior vice president at U.S.A. Gymnastics for the women’s program, was fired by the organization last year. Faehn told a Senate panel that she had informed Penny about several accusations about Nassar in 2015, and that Penny directed her and others not to discuss “the current issue” about a member of the medical staff with anyone. Faehn had also been hired by the University of Michigan in 2018 to be a coaching consultant for its women’s gymnastics team, but the university ended its contract with her just days later after an outcry.

Mary Lee Tracy, a longtime coach who initially defended Nassar, was asked by U.S.A. Gymnastics to resign her position last year, only days after the federation hired her as its elite development coordinator. In a statement, U.S.A. Gymnastics said Tracy had acted “inappropriately” by contacting a gymnast who was suing over the Nassar case.

Ron Galimore, a former elite gymnast who rose to become the long-serving chief operating officer for U.S.A. Gymnastics, resigned last year. The Indianapolis Star had reported that Galimore worked with other officials to give “false excuses” for Dr. Nasser’s absence during an investigation into abuse in 2015.

In December, U.S.A. Gymnastics filed for bankruptcy. Kathryn Carson, the federation’s newly elected chairwoman, characterized the filing as a reorganization, “not a liquidation,” and said she believes the bankruptcy will hasten claim payments to the hundreds of plaintiffs who have sued the organization for failing to protect them from Nassar.

It was unclear how the bankruptcy would affect the United States Olympic Committee’s efforts to decertify U.S.A. Gymnastics, a process it began in November in order to strip the organization of its power as a governing body. A spokesman for the U.S.O.C. said the organization was reviewing the filing.

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United States Olympic Committee

Scott Blackmun, chief executive of the U.S.O.C., stepped down last year after calls for his resignation from two senators, a group of former Olympians, athletes’ representatives and child-advocacy experts amid criticism of the committee’s handling of the abuse scandal.