I'm often skeptical of "leaks" of classified information, but this seems to be the real deal. The Bush administration knew exactly what was going on. It all makes a lot of sense now.
It turns out that Saddam may not have had any WMD close at hand. However, his ties with al Qaeda were very tight. Any WMD he produced in the future would have very quickly ended up in al Qaeda's hands and used against the United States.
Despite how much this leak could help Bush, they need to find out who leaked this and lock them up. Leaking this sort of information compromising all sorts of intelligence methods. Bush is willing to take heaps of criticism to keep this information classified.