Speech or Debate Clause

Clause in the United States Constitution (Article I, Section 6, Clause 1)
The Speech or Debate Clause is a clause in the United States Constitution (Article I, Section 6, Clause 1). The clause states that "The Senators and Representatives" of Congress "shall in all Cases, except Treason, Felony, and Breach of the Peace, be privileged from Arrest during their attendance at the Session of their Respective Houses, and in going to and from the same; and for any Speech or Debate in either House, they shall not be questioned in any other Place." The intended purpose is to prevent a U. S. President or other officials of the executive branch from having members arrested on a pretext to prevent them from voting a certain way or otherwise taking actions with which the president might disagree. It also protects members from civil suits related to their official duties. A similar clause in many state constitutions protects members of state legislatures. Legislators elsewhere in the world are often similarly protected under the doctrine of parliamentary immunity.

On , Senator Mike Gravel (D Alaska) received a copy of the Pentagon Papers from Ben Bagdikian, an editor at The Washington Post. Over the next several days, Gravel (who was dyslexic) was assisted by his congressional office staff in reading and analyzing the report. A lack of a quorum, however, prevented the Senate from convening. A federal district court refused to grant the motion to quash but did agree to proscribe certain questions. The trial court also held that publication of the Pentagon Papers by a private press was not protected by the Speech or Debate Clause. The United States appealed the barring of questions, and Senator Gravel appealed the ruling regarding publication. The United States Supreme Court granted certiorari. In Gravel v. United States, 408 U. S. 606 (1972), the Supreme Court held (5–4) that the privileges of the Speech or Debate Clause extend to Congressional aides. Rejecting the reasoning of the Court of Appeals, the Supreme Court held, "the privilege available to the aide is confined to those services that would be immune legislative conduct if performed by the Senator himself". The Court refused to protect congressional aides either from prosecution for criminal conduct or from testifying at trials or grand jury proceedings involving third party crimes. The Supreme Court also vacated the lower court's order permitting some questions and barring others, concluding that if the testimony is privileged then the privilege is absolute. The Supreme Court upheld the district court ruling regarding private publication. "[Private] publication by Senator Gravel through the cooperation of Beacon Press was in no way essential to the deliberations of the Senate; nor does questioning as to private publication threaten the integrity or independence of the Senate by impermissibly exposing its deliberations to executive influence." The Gravel case narrowed the protections offered by the Speech or Debate Clause.

In May 2006, the FBI raided the office of Representative William J. Jefferson, a Democratic congressman from Louisiana, in the Rayburn House Office Building on Capitol Hill. The raid took place during the fourteenth month of an investigation into Jefferson's business ventures in Africa. The FBI raid prompted a bipartisan uproar, with immediate objections from congressional leaders in both parties, who said that the raid was inappropriately aggressive and violated the Speech or Debate Clause. The court held that "the Congressman is entitled to the return of all materials (including copies) that are privileged legislative materials under the Speech or Debate Clause. Where the Clause applies its protection is absolute." Jefferson was later convicted on the basis of other, unrelated evidence; in 2009, he was found guilty of bribery, racketeering, and money laundering in connection with his acceptance of bribes and payoffs in connection with these ventures; he was acquitted of several other charges.

In August 2006, U. S. Representative John Murtha was sued by U. S. Marine Corps Staff Sergeant Frank D. Wuterich, over statements that Murtha had made to reporters about the Haditha massacre, an incident in Haditha, Iraq in which 24 civilians were killed after U. S. troops under Wuterich, a squad leader, opened fire. (Wuterich was later court martialed, and pleaded guilty to one count of negligent dereliction of duty in connection with the Haditha killings in a plea agreement with military prosecutors, following an investigation begun in March 2006.) In his 2006 complaint, Wuterich sued Murtha, alleging that the congressman's comments to the press that the Haditha killings constituted "cold blooded murder and war crimes" were defamatory and an invasion of privacy. The remarks were made at a press conference and in a follow up television interview. Wuterich also sought to compel Murtha to sit for a deposition in the civil case. In 2007, U. S. District Judge Rosemary M. Collyer ruled that Murtha must testify in the defamation case; in response, commentators expressed concern that Murtha was acting as a lawmaker and was therefore protected by the Speech or Debate Clause. In 2009, the U. S. Court of Appeals for the District of Columbia ruled in Murtha's favor, accepting his argument that he was acting in an official capacity, concluding that he was immune from suit, remanding the case to the district court and ordering dismissal of the case for lack of subject matter jurisdiction due to sovereign immunity.

A judge ruled in 2023 that the Speech or Debate Clause applies to the vice president of the United States, in this case Mike Pence, whenever presiding over the Senate.