Jurors resumed deliberating Friday over whether former White House aide I. Lewis "Scooter" Libby obstructed the investigation into who leaked the identity of a CIA operative married to a prominent Iraq war critic.

The eight women and four men began deliberations late Wednesday morning and have issued only two brief written notes, which suggested they are methodically reviewing the evidence against the former chief of staff to Vice President Dick Cheney.

Click here to read Libby's federal indictment. (FindLaw)

They requested a large flip chart, masking tape, Post-it notes and a document with pictures of the witnesses.

In addition to obstruction of the leak investigation, Libby is charged with lying to the FBI and a grand jury about how he learned and whom he told about CIA operative Valerie Plame.

Prosecutors say he concocted a story to avoid losing his job for disclosing classified information to reporters without authorization. Libby said he gave investigators his best recollection of what happened and any errors resulted from memory flaws.