Shamir et al. (1993, 1994) discuss the use of charismatic rhetoric in the refere

Shamir et al. (1993, 1994) discuss the use of charismatic rhetoric in the reference to history and tradition, emphasis of a collective identity, reinforcement of a collective efficacy and the communication of a vision or hope for a better future as common foundations of charismatic speeches. Identify a specific speech (for example, Barack Obama’s 2008 Presidential inauguration speech) that contains all of these elements.
Lastly, please provide your perspective on why the presence of a vision is crucial in the elicitation of charismatic leadership.