Below are links to useful sites. The first two offer professional analysis of current American political speeches; the third shows how American students fared in the same sort of assignment that you were given
Presidential Campaign Rhetoric 2004 at Rhetorica
Rhetorica home page
Rhetorical analysis – a course from the University of Texas, with sample student essays on famous speeches
silva rhetoricae: the mother of all rhetoric websites, from Brigham Young again.
copyright Norwich School 2002