Scotusblog coverage: https://www.scotusblog.com/case-files/cases/harrow-v-departm...

Filings can be read on the docket: https://www.supremecourt.gov/docket/docketfiles/html/public/...

This is a paid petition filed with the assistance of counsel. The printing fees alone are vastly more than $3000. I bet the federal employee union is supporting this petition.