what court should I file in a judgment awarded based on fraud and perjury of defendant in a school negligence and bullying case?

I filed suit against a school district on behalf of my minor child. He was injured as a result of a physical assault by a violent student in an unsupervised gym; bullied 3rd thru 12th grade; school officials failed to protect him; we went to court and the presiding judge colluded with defendants to throw a large monkey wrench in the case, we lost; 99% of evidence of credible evidence was dismissed my the unjust judge including medical records which identified my son suffered serious health problems as a result of years, and years of bullying; the judge abused his discretion and partial to defendants attorneys in hearings, pre trial...My child suffered head trauma being beaten in his head by a violent student during class in an unsupervised gym. His teacher allowed 10 or more boys go into the gym to get a drink of water, as a result he was beaten, kicked at 13 by a 16 year old. Judgment for $140,000; going to U.S. District Court on Fraud and Perjury.