The paper uses H.P. Grice’s concept of conversational implicature, and concepts based on Gricean thinking, in a rhetorical analysis of several passages in President George W. Bush’s speeches prior to the invasion of Iraq. It is suggested that the passages in question, along with many others, were apt to suggest to audiences something that Bush never asserted and ostensibly denied, namely that he believed Saddam Hussein to have been complicit in the 9/11 terrorist acts. Three types of suggestive mechanism are analyzed. They are offered as examples of rhetorical devices used in political communication that may create a kind of “public knowledge” that has not been asserted, supported with reasons, or reflected upon.