Rep. Peter DeFazio, the Oregon Democrat who chairs the House Transportation and Infrastructure Committee, is increasing pressure on President Donald Trump s administration to produce documents for an investigation into the Trump International Hotel in Washington.

In an Oct. 17 letter to the General Services Administration, DeFazio threatened to subpoena the documents if the agency fails to provide them to the committee this Wednesday.

The GSA which administers all federal buildings, including the Old Post Office that the Trump International Hotel is leasing is under the jurisdiction of the House Transportation and Infrastructure Committee.

While GSA has produced some records to the Committee, to date GSA has failed to provide the Committee with critical categories of records we require to conduct appropriate oversight of your agency and this lease, DeFazio and Rep. Dina Titus (D-Nev.), chair of the subcommittee on public buildings, wrote in the letter.