A federal judge on Monday threw out subpoenas issued by the Justice Department targeting Gov. Tim Walz (D-MN) and other Minnesota officials who requested the state’s records on cooperation with immigration enforcement.

In a scathing 29-page ruling, U.S. District Judge Patrick Schiltz framed the DOJ subpoenas as harassment, calling the department’s use of a grand jury to initiate an investigation into Walz “unlawful and unethical.”