Rove must have had "authorized access to classified information" under the statute. Plame was an NCO (non-covered officer). White House aides, and even the president, are seldom, if ever, given this information. So it is not likely Rove had "authorized access" to it.
(snip)
By late February 2002, the Department of Justice indicted Randel for his leaking of Lord Ashcroft's name. It was an eighteen count "kitchen sink" indictment; they threw everything they could think of at Randel.
Most relevant for Karl Rove's situation, count one of Randel's indictment alleged a violation of Title 18, United States Code, Section 641. This is a law that prohibits theft (or conversion for one's own use) of government records and information for non-governmental purposes. But its broad language covers leaks, and it has now been used to cover just such actions.(snip)
Rove may be able to claim that he did not know he was leaking "classified information" about a "covert agent," but
there can be no question he understood that what he was leaking was "sensitive information." The very fact that Matt Cooper called it "double super-secret background" information suggests Rove knew of its sensitivity, if he did not know it was classified information (which by definition is sensitive).
(snip)
There are stories circulating that Rove may have been told of Valerie Plame's CIA activity by a journalist, such as Judith Miller, as recently suggested in Editor & Publisher. If so, that
doesn't exonerate Rove. Rather, it could make for some interesting pairing under the federal conspiracy statute (which was the statute most commonly employed during Watergate).(more)
http://www.cnn.com/2005/LAW/07/15/dean.rove/