So, You've Been Asked to Testify Before Congress

Learning About the Hearing. Why me The Committee Chairman usually sends a letter to the Defense Department that describes the subject of the hearing and invites the witnesses the committee wants to hear from. Witnesses are chosen for either their expertise or because of their position. Why have a hearing Hearings create an official record of information and opinions, while providing members of Congress an opportunity to present their views and challenge opponents. Before legislation is considered on the floor of the House or Senate, committees are required to make available to all members the transcripts of hearings related to that legislation. Therefore, your statements could influence the final version of a defense bill.