I don't think so. First of all nothing changes, Libby knows that the other folks are gonna testify to the facts.
And second of all USC 18,793 and 794 both begin with this: "a) Whoever, with intent or reason to believe that it is to be used to the injury of the United States or to the advantage of a foreign nation.....".
No way Fitzgerald could ever get a conviction with those words as the starting point.
This was politics, not espionage.
Suck-up!