From your link of the editorial on 23 October 2003:
Wilson also acknowledged that he has been advising Kerry on foreign policy for about five months. Yes, that would put it before Wilson started criticizing President Bush for the line in his State of the Union message about Iraq seeking uranium from Niger for use in Saddam Hussein's nuclear program. (Wilson was the one sent to Niger by the CIA to investigate the charge, but insists he found no evidence of same.)
So this slimeball has been used by the Kerry/Kennedy Mass Dem machine.