Among the conspiracy charges is an accusation that Nagin awarded "no bid" work to a city contractor who provided "concealed and direct campaign monies" to Nagin, the indictment says.

CNN: STORY HIGHLIGHTS

He wants access to quite a few of them in order to show something about Mr. Libby's pace of work and so forth and help defend himself against the charge that he may have concealed information about this case from a grand jury.

CNN: Ensor: Lowdown on documents in CIA leak case