The jury submitted the question Tuesday to U.S. District Judge Reggie Walton. The Washington Post reported the jurors wanted clarification on how to interpret one of the five counts against Libby, concerning charges he lied about a conversation with former Time magazine reporter Matt Cooper.
Libby, 56, U.S. Vice President Dick Cheney's former national security adviser, is charged with perjury, obstruction of justice and lying to the FBI, stemming from the investigation into who leaked the name of CIA operative Valerie Plame.
The note was the fourth since the jurors began their deliberations last week. Two of the previous notes involved office supplies and pictures of the witnesses. The third involved a juror who was dismissed for violating instructions about exposure to coverage of the trial, leaving 11 jurors to deliberate the verdict.