Digby: Fitz In The Tank?

Michael Isikoff reports:

Fitzgerald made another visit early Friday morning—shortly before the grand jury voted to indict Dick Cheney's top aide, I. Lewis (Scooter) Libby—to the office of James Sharp, President George W. Bush's own lawyer in the case, to tell him the president's closest aide would not be charged.

Holy Shit. Can someone tell me why Fitzgerald would go to President Bush's personal lawyer on Friday to tell him that Bush's "closest aide wouldn't be charged?" Is it in any possible sense ethical for the prosecutor to be telling the president's lawyer information that isn't available to the public about members of the president's staff in the middle of an investigation?