You probably mean Paul O'Neil.
He was perhaps the first to let on that Bush planned to attack Iraq even before 9/11.
From the Washington Post:
"The book, "Battle Ready," is by novelist Tom Clancy, with Zinni and Tony Koltz. Zinni was U.S. special envoy to the Middle East for Secretary of State Colin L. Powell from November 2002 to March 2003. In several interviews and statements at the time, Bush mentioned Zinni's presence in the region as one reason for his optimism about the peace process and said he was looking forward to his recommendations. Referring to himself and Vice President Cheney, Bush said during an exchange with reporters in the Oval Office, "We both trust General Zinni."
Walt
I guess Messrs. Bush and Cheney have learned that lesson the hard way.