A federal judge has ruled in favor of the House Judiciary Committee's subpoena of former Manhattan District Attorney's office prosecutor Mark Pomerantz, allowing the committee to proceed with its investigation into former President Donald Trump. The ruling is a victory for the committee and a setback for the District Attorney's office, which had argued that the subpoena was an attempt to interfere with its investigation. Judge Mary Kay Vyskocil, a Trump nominee, concluded that the subpoena was issued with a "valid legislative purpose" and that Mr. Pomerantz must appear for the congressional deposition.