Karl Rove bit the bullet and testified before the grand jury investigating the leak of the identity of former CIA operative Valerie Plame.

"He's doing his part to cooperate," said White House spokesman Scott McClellan, traveling with Bush on campaign visits to Iowa and Wisconsin.

Second piece of spin:

White House aides would not give any other details about the proceedings, which are secret.

There is no secrecy rule for federal grand jury witnesses. They can tell all they want about what they were asked and how they responded. The secrecy rule applies to prosecutors, grand jurors, investigators and others involved in the proceedings.

Fed. R. Crim. P. Rule 6(e)(2) Secrecy.

(A) No obligation of secrecy may be imposed on any person except in accordance with Rule 6(e)(2)(B).

(B) Unless these rules provide otherwise, the following persons must not disclose a matter occurring before the grand jury:

(i) a grand juror;

(ii) an interpreter;

(iii) a court reporter;

(iv) an operator of a recording device;

(v) a person who transcribes recorded testimony;

(vi) an attorney for the government; or

(vii) a person to whom disclosure is made under Rule 6(e)(3)(A)(ii) or (iii).

Karl Rove could hold a press conference and say what he told the grand jury...if he wanted to.