This really lays it all out:
http://www.washingtonpost.com/wp-dyn/content/article/2005/10/24/AR2005102401690_pf.html washingtonpost.com
Husband Is Conspicuous in Leak Case
Wilson's Credibility Debated as Charges In Probe Considered
By Dana Milbank and Walter Pincus
Washington Post Staff Writers
Tuesday, October 25, 2005; A03
To his backers, Joseph C. Wilson IV is a brave whistle-blower wronged by the Bush administration. To his critics, he is a partisan who spouts unreliable information.
But nobody disputes this: Possessed of a flamboyant style and a love for the camera lens, Wilson helped propel the unmasking of his wife's identity as a CIA operative into a sprawling, two-year legal probe that climaxes this week with the possible indictment of key White House officials. He also turned an arcane matter involving the Intelligence Identities Protection Act into a proxy fight over the administration's credibility and its case for war in Iraq.