As rumors circulated during the 2000 presidential campaign about then Governor George W. Bush's prior drug use, Scott McClellan claims Bush said he could not remember if he had used cocaine or not.

Political Punch highlights this excerpt from McClellan's book:
"The media won't let go of these ridiculous cocaine rumors," I heard Bush say. "You know, the truth is I honestly don't remember whether I tried it or not. We had some pretty wild parties back in the day, and I just don't remember."

I remember thinking to myself, How can that be? How can someone simply not remember whether or not they used an illegal substance like cocaine? It didn't make a lot of sense.

I think he meant what he said in that conversation about cocaine. It's the first time when I felt I was witnessing Bush convincing himself to believe something that probably was not true, and that, deep down, he knew was not true. And his reason for doing so is fairly obvious