USA Gymnastics chief steps down after criticism of anti-Nike tweet
![USA Gymnastics chief steps down after criticism of anti-Nike tweet](https://thehill.com/sites/default/files/styles/promo/public/bilessimone_getty09292016.jpg?itok=UVR2C0Xg)
USA Gymnastics CEO Mary Bono resigned on Tuesday after she was criticized by many, including Olympic gymnast Simone Biles, for a derisive tweet about Nike.In a statement first reported by CNN, Bono defended her tweet, a since-deleted...