U.S. Representative Darrell Issa asked a federal judge to stop Roger Clemens from seeking testimony and documents from Congress for use in his perjury trial. Issa, in a court filing today in Washington, said the request is barred by the Constitution’s Speech or Debate Clause.

To contact the reporter on this story: Tom Schoenberg in Washington at tschoenberg@bloomberg.net

To contact the editor responsible for this story: Fred Strasser at fstrasser@bloomberg.net