This Senior History thesis entitled, Johnson's War: How Vietnam Tarnished a Presidency, dives into the controversial and often questioned success of Lyndon Johnson as President of the United States. Specifically, the Vietnam War and its harsh effect on Johnson and the United States is debated throughout. The context expresses how Johnson's presidency would forever be tarnished by the stain the Vietnam War has left in American history. The steps taken during the Johnson administration were proven to be quite harmful to his reputation and the success of the nation. The decisions made and consequences that came with the Vietnam War have forever changed the thought process of how America now deals with foreign conflicts.