"My reaction is that it's a scurrilous article, " Giuliani said today after appearing at the New York Stock Exchange.

CNN: Navigation

Rice called Clarke's allegations "scurrilous" and made the rounds of news shows last week to challenge his credibility.

CNN: Rice: 'Nothing to hide' from 9/11 commission

"These scurrilous attacks on John Kerry's credibility in war, courage and valor are false and George Bush is behind it, " he said.

CNN: Political drama unfolds as letter carriers fail to deliver