Read the indictment, hot shot. He was indicted for his testimony in March 2004:
"31. In or about March 2004, in the District of Columbia,
I. LEWIS LIBBY, also known as "SCOOTER LIBBY,"
defendant herein, did knowingly and corruptly endeavor to influence, obstruct and impede the due administration of justice, namely proceedings before Grand Jury 03-3, by misleading and deceiving the grand jury as to when, and the manner and means by which, LIBBY acquired and subsequently disclosed to the media information concerning the employment of Valerie Wilson by the CIA."
Ta ta, hot shot.