This dissertation examines whether the Bush doctrine's use of manipulated intelligence contributed to an uncritical reading of the security situation in Iraq. It explores how intelligence was used to support the Bush doctrine's policy goals of regime change and preemption rather than inform them. The central argument is that relying on intelligence to justify predetermined policies, rather than let intelligence guide the policy choice, undermined an accurate assessment of post-invasion Iraq and the costs involved. The study aims to establish the role of intelligence in pursuing the Bush doctrine and how its misuse impacted the outcome in Iraq and longer-term security. It analyzes primary sources and secondary literature to make the case that emotions and predetermined goals led to an over-reliance on dubious intelligence