The State Department’s inspector general requested an “urgent” briefing with congressional staff about documents related to Ukraine after Secretary of State Mike Pompeo slammed a subpoena from House Democrats.

State Inspector General Steve Linick plans to meet with staffers from several House committees on Wednesday, but it is unclear exactly what he plans to provide them. He did, however, indicate that the reason for the briefing is related to documents obtained from the department’s Office of the Legal Adviser in regard to the State Department and Ukraine.