By Byron York
National Review Online
On virtually every day of the perjury and obstruction of justice trial of Lewis Libby, it was hard not to imagine that the jurors were asking themselves, “Why is this guy on trial?” Why wasn’t Richard Armitage, the former State Department official who first leaked the identity of Valerie Plame Wilson, in the courtroom? Or Ari Fleischer, the former White House press secretary who told reporters about Mrs. Wilson? Or Karl Rove, the top White House aide who ever-so-briefly discussed her with journalists?