A federal judge declined Wednesday to block a subpoena from the House Judiciary Committee to a former prosecutor who investigated Donald Trump in the Manhattan district attorney’s office, paving the way for a Thursday deposition of the former prosecutor, Mark Pomerantz.

“The subpoena was issued with a ‘valid legislative purpose’ in connection with the ‘broad’ and ‘indispensable’ congressional power to ‘conduct investigations,’” wrote U.S. District Judge Mary Kay Vyskocil.

“It is not the role of the federal judiciary to dictate what legislation Congress may consider or how it should conduct its deliberations in that connection,” she continued. “Mr. Pomerantz must appear for the congressional deposition. No one is above the law.”

The ruling came in response to a lawsuit from Manhattan District Attorney Alvin Bragg against Rep. Jim Jordan (R-Ohio) and the Judiciary panel, which he chairs. Bragg sought a court order preventing the House from enforcing the subpoena, arguing that the House had no legitimate legislative purpose in issuing the subpoena and that it intends to examine the district attorney’s internal deliberations regarding the criminal case it brought against Trump last month.

The Judiciary committee has contended that its purpose in issuing the subpoena is to study the potential effects that the threat of a future prosecution could have on a president while he is in office.