daughter was sexually abuse on school bus and school did nothing can I file charges against school

Daughter was sexually molested on school bus Thursday afternoon, spoke with principal Friday morning who said she would start an investigation and promised my daughter that she wouldn't let that boy hurt her again but then my daughter came home Friday afternoon and said that the same boy sat next to her again and tried to touch and kiss her again. The school did nothing and allowed my daughter to be violated again. What can I do? Can I press charges against school and the boy? I don't know what to do at this point?