[kevkrom]

Libby's claim could still cause political damage to a president who has spoken out strongly against leaks.

If it's been declassified, it's no longer a leak of classified information.

Of course, the counter point to this is that a proper declassification requires more than just a say-so. Someone with classification authority (which the President arguably has by definition) has to physically sign off on that score...

[tobyhill]

What's the form number required for the President to sign off on disclosure?

[ravingnutter]

On October 7, 2002 DCI Tenet sent a letter to the Senate Intelligence Committee declassifying portions of its new National Intelligence Estimate on Iraq.

Sen. Carl Levin News Release

Another article:

A 25-page version of the National Intelligence Estimate on Iraq's weapons of mass destruction was released in October 2002. It made clear-cut statements about Iraq's nuclear, biological and chemical weapons capabilities in two pages of "Key Judgments."

Source

A copy of the document can be found here. Warning: .pdf file.