The theme of the Unit reflects a waning of the credibility and prestige of the Office of the President. Why did the actions of Lyndon Johnson, Richard Nixon and Ronald Reagan contribute to this process? Why did such determined Republican opposition hamper the effectiveness of the Clinton and Obama presidencies? Why did the George W. Bush push for an open ended War authorization (War on Terror) in the aftermath of 9/11? Did his decision to go to War in Iraq contribute to the arc of credibility erosion of the Presidency?