Representatives Ro Khanna, a California Democrat, and Thomas Massie, a Kentucky Republican, have asked a federal judge to appoint a “special master and independent monitor” to oversee the Department of Justice’s (DOJ) release of its files on Jeffrey Epstein.

In a letter to U.S. District Judge Paul Engelmayer dated Thursday, the lawmakers said the DOJ had failed to meet the requirements of the Epstein Files Transparency Act “in multiple respects," including failing to meet a December 19 deadline to release all the files.

"As the leads of the Epstein Files Transparency Act, we have urgent and grave concerns about DOJ’s failure to comply with the Act as well as the Department’s violations of this Court’s order,” they wrote.